<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v2.0 20040830//EN" "journalpublishing.dtd"><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="2.0" xml:lang="en" article-type="research-article"><front><journal-meta><journal-id journal-id-type="nlm-ta">J Med Internet Res</journal-id><journal-id journal-id-type="publisher-id">jmir</journal-id><journal-id journal-id-type="index">1</journal-id><journal-title>Journal of Medical Internet Research</journal-title><abbrev-journal-title>J Med Internet Res</abbrev-journal-title><issn pub-type="epub">1438-8871</issn><publisher><publisher-name>JMIR Publications</publisher-name><publisher-loc>Toronto, Canada</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">v27i1e72807</article-id><article-id pub-id-type="doi">10.2196/72807</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Paper</subject></subj-group></article-categories><title-group><article-title>Testing the ELSA Birth App During Pregnancy and Labor for Primiparous Women: Randomized Controlled Trial</article-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name name-style="western"><surname>&#x00C4;ngeby</surname><given-names>Karin</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Johansson</surname><given-names>Margareta</given-names></name><degrees>Prof Dr</degrees><xref ref-type="aff" rid="aff3">3</xref><xref ref-type="aff" rid="aff4">4</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>B&#x00F8;r&#x00F8;sund</surname><given-names>Elin</given-names></name><degrees>Prof Dr</degrees><xref ref-type="aff" rid="aff5">5</xref><xref ref-type="aff" rid="aff6">6</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Varsi</surname><given-names>Cecilie</given-names></name><degrees>Prof Dr</degrees><xref ref-type="aff" rid="aff7">7</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Iwaya</surname><given-names>Leonardo Horn</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff8">8</xref></contrib><contrib contrib-type="author"><name name-style="western"><surname>Nordin</surname><given-names>Anna</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="aff1">1</xref></contrib></contrib-group><aff id="aff1"><institution>Department of Health Science, Faculty of Health, Science, and Technology, Karlstad University</institution><addr-line>Universitetsgatan 2</addr-line><addr-line>Karlstad</addr-line><country>Sweden</country></aff><aff id="aff2"><institution>Women's Department and Centre for Clinical Research and Education, Region V&#x00E4;rmland</institution><addr-line>Karlstad</addr-line><country>Sweden</country></aff><aff id="aff3"><institution>Department of Women&#x2019;s and Children&#x2019;s Health, Uppsala University</institution><addr-line>Uppsala</addr-line><country>Sweden</country></aff><aff id="aff4"><institution>Department of Women&#x2019;s Health Care, Akademiska University Hospital</institution><addr-line>Uppsala</addr-line><country>Sweden</country></aff><aff id="aff5"><institution>Department of Digital Health Research, Division of Medicine, Oslo University Hospital</institution><addr-line>Oslo</addr-line><country>Norway</country></aff><aff id="aff6"><institution>Department of Nursing and Health Sciences, Faculty of Health and Social Sciences, University of South-Eastern Norway</institution><addr-line>Drammen</addr-line><country>Norway</country></aff><aff id="aff7"><institution>Faculty of Health and Social Sciences, University of South-Eastern Norway</institution><addr-line>Drammen</addr-line><country>Norway</country></aff><aff id="aff8"><institution>Department of Mathematics and Computer Science, Faculty of Health, Science, and Technology, Karlstad University</institution><addr-line>Karlstad</addr-line><country>Sweden</country></aff><contrib-group><contrib contrib-type="editor"><name name-style="western"><surname>Leung</surname><given-names>Tiffany</given-names></name></contrib></contrib-group><contrib-group><contrib contrib-type="reviewer"><name name-style="western"><surname>Khandakar</surname><given-names>Binny</given-names></name></contrib><contrib contrib-type="reviewer"><name name-style="western"><surname>Jover</surname><given-names>Virtudes P&#x00E9;rez</given-names></name></contrib></contrib-group><author-notes><corresp>Correspondence to Karin &#x00C4;ngeby, PhD, Department of Health Science, Faculty of Health, Science, and Technology, Karlstad University, Universitetsgatan 2, Karlstad, 65188, Sweden, 46 703579767; <email>Karin.Angeby@kau.se</email></corresp></author-notes><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>16</day><month>10</month><year>2025</year></pub-date><volume>27</volume><elocation-id>e72807</elocation-id><history><date date-type="received"><day>19</day><month>02</month><year>2025</year></date><date date-type="rev-recd"><day>28</day><month>08</month><year>2025</year></date><date date-type="accepted"><day>30</day><month>08</month><year>2025</year></date></history><copyright-statement>&#x00A9; Karin &#x00C4;ngeby, Margareta Johansson, Elin B&#x00F8;r&#x00F8;sund, Cecilie Varsi, Leonardo Horn Iwaya, Anna Nordin. Originally published in the Journal of Medical Internet Research (<ext-link ext-link-type="uri" xlink:href="https://www.jmir.org">https://www.jmir.org</ext-link>), 16.10.2025. </copyright-statement><copyright-year>2025</copyright-year><license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link>), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research (ISSN 1438-8871), is properly cited. The complete bibliographic information, a link to the original publication on <ext-link ext-link-type="uri" xlink:href="https://www.jmir.org/">https://www.jmir.org/</ext-link>, as well as this copyright and license information must be included.</p></license><self-uri xlink:type="simple" xlink:href="https://www.jmir.org/2025/1/e72807"/><related-article related-article-type="correction-forward" ext-link-type="doi" xlink:href="10.2196/86193" xlink:title="This is a corrected version. See correction statement in" xlink:type="simple">https://www.jmir.org/2025/1/e86193</related-article><abstract><sec><title>Background</title><p>Early labor is often managed at home without professional support. The Birth App (Birth by Heart) is an app designed to support women during early labor. A pilot study revealed that women found the app&#x2019;s exercises simple, understandable, and practical. The app was perceived as useful and appreciated by women, although areas for improvement were identified, primarily related to technical issues. After the development and test period, the updated app was tested in a randomized controlled trial.</p></sec><sec><title>Objective</title><p>This study aims to investigate whether women using the Birth App during pregnancy and childbirth experience less distress during early labor compared to those receiving standard antenatal care.</p></sec><sec sec-type="methods"><title>Methods</title><p>We used online recruiting in a nonblinded 3-part blended care model with 1:1:1 randomization: group 1 (Birth App intervention); group 2 (Birth App Plus, combining the app with in-person additional midwifery contacts); and group 3 (control group receiving standard antenatal care). Pregnant nulliparous women were invited via social media. Eligibility criteria were nulliparity, planning a vaginal birth, from gestational week 25+0 to 35+6 weeks, proficiency in understanding Swedish, and having access to a smartphone or tablet. Data were analyzed with descriptive statistics, chi-square tests, and ANOVA.</p></sec><sec sec-type="results"><title>Results</title><p>A total of 391 women completed the baseline questionnaire and were included in the study (group 1, n=118; group 2, n=114; group 3, n=118). Of these, 335 women responded to the questionnaire 1 month postpartum, yielding a response rate of 85.6%. Most participants experienced a spontaneous onset of labor (group 1: 67/103, 65%; group 2: 81/114, 71%; and group 3: control group, 86/118, 73%), with no statistically significant differences between groups. During early labor, women in group 1 remained at home for a mean of 16.76 (SD 20.45) hours, group 2 for a mean of 14.47 (SD 16.82) hours, and the control group for a mean of 12.90 (SD 15.99) hours (<italic>P</italic>=.32). For the primary and secondary outcomes, only women with spontaneous onset of labor (n=234) were included in the analysis. The primary outcome, emotional distress, showed similar mean values across all groups. No statistically significant differences were identified in the secondary outcomes: childbirth experience, pain relief, and support from the partner. However, for the secondary outcome fear of future birth, a pairwise testing from baseline to follow-up revealed a statistically significant mean difference for the intervention groups (group 1: mean 13.53, 95% CI 5.12&#x2010;21.92, <italic>P</italic>=.002; group 2: mean 14.59, 95% CI 7.75&#x2010;21.42, <italic>P</italic>&#x003C;.001) with a medium effect size (Cohen <italic>d</italic>=.40 vs <italic>d</italic>=.47). For group 3, the mean was 6.78 (95% CI &#x2212;.95 to 14.53; <italic>P</italic>=.08).</p></sec><sec sec-type="conclusions"><title>Conclusions</title><p>The Birth App, in conjunction with additional midwifery support, can be a valuable tool for pregnant women and their partners during pregnancy and childbirth. The observed reduction in fear of forthcoming childbirth associated with the Birth App warrants further investigation.</p></sec><sec><title>Trial Registration</title><p>ClinicalTrials.gov NCT05122390; https://clinicaltrials.gov/study/NCT05122390</p></sec></abstract><kwd-group><kwd>fear of childbirth</kwd><kwd>mobile app</kwd><kwd>early labor</kwd><kwd>emotional distress</kwd><kwd>midwifery support</kwd><kwd>antenatal education</kwd><kwd>mHealth</kwd><kwd>childbirth experience</kwd><kwd>randomized controlled trial</kwd><kwd>mobile health</kwd></kwd-group></article-meta></front><body><sec id="s1" sec-type="intro"><title>Introduction</title><p>The first part of childbirth, called early labor, is often handled at home by the women and their partners themselves, without support from professionals [<xref ref-type="bibr" rid="ref1">1</xref>]. However, it could be difficult for first-time mothers to know what to expect at labor onset, and their experiences in early labor may differ from their expectations [<xref ref-type="bibr" rid="ref2">2</xref>]. A newly published scoping review showed that positive and negative emotions were perceived during early labor [<xref ref-type="bibr" rid="ref2">2</xref>]. The Early Labor Experience Questionnaire (ELEQ) was developed to assess women&#x2019;s affective experiences [<xref ref-type="bibr" rid="ref3">3</xref>], showing primiparous women experiencing higher emotional distress during early labor compared to multiparous women [<xref ref-type="bibr" rid="ref4">4</xref>]. Emotional distress during childbirth, perceived lower quality of care, and a negative childbirth experience in general are associated with a longer latent phase of labor in first-time mothers [<xref ref-type="bibr" rid="ref5">5</xref>]. However, women are encouraged by professionals not to be in the labor ward during early labor, to reduce the risk of the use of unnecessary medical interventions [<xref ref-type="bibr" rid="ref6">6</xref>].</p><p>Structured antenatal education programs to prepare for childbirth are offered to women and their partners, and they address both physiological, emotional, and social aspects during pregnancy, childbirth, and early parenthood. However, these programs vary across countries and contexts, and the benefits of these programs remain unclear [<xref ref-type="bibr" rid="ref7">7</xref>]. Several studies have shown that special targeted antenatal education enabling the woman and her partner to feel more confident is beneficial for the outcome of labor, both in terms of arriving at the hospital in more advanced labor, less use of epidural anesthesia, a better childbirth experience, and fewer acute cesarean sections [<xref ref-type="bibr" rid="ref8">8</xref>-<xref ref-type="bibr" rid="ref10">10</xref>].</p><p>To enhance women&#x2019;s confidence to remain at home during early labor, adequate preparation for managing pain in early labor is important [<xref ref-type="bibr" rid="ref1">1</xref>], as feeling anxious increases the perception of pain [<xref ref-type="bibr" rid="ref2">2</xref>]. Birth preparation training for women, with mindfulness, has been tested in a few small, randomized controlled trials (RCTs), demonstrating a higher ability to manage pain, increased psychological well-being, a trend toward lower use of opioids during labor, increased self-efficacy, and decreased fear of childbirth among women [<xref ref-type="bibr" rid="ref11">11</xref>,<xref ref-type="bibr" rid="ref12">12</xref>].</p><p>Since 2009, pregnant women and their partners have had the option to enroll in antenatal training classes, for a fee, using the Birth Without Fear method [<xref ref-type="bibr" rid="ref13">13</xref>]. This method aims to equip women and their partners with the knowledge and skills to better manage pain and experiences during childbirth through active measures, including support and stress-relief techniques. The method uses 4 different tools to enhance relaxation: soft and silent breathing through contractions, relaxed muscles, a deep pitch of the voice, and positive expectation of the mind [<xref ref-type="bibr" rid="ref13">13</xref>]. The Birth Without Fear method was later conceptualized in a digital app, and a first version was tested in a feasibility pilot study. The result showed that the app was perceived as useful and appreciated by women and suitable for efficacy testing in an RCT [<xref ref-type="bibr" rid="ref14">14</xref>]. The company Birth by Heart led the app development, involving senior software developers with expertise in health and fitness apps and an expert group to define the requirements. Regular stakeholder meetings ensured alignment, reviewed app versions, and incorporated feedback throughout the process. The app development process is more thoroughly described in another publication [<xref ref-type="bibr" rid="ref15">15</xref>]. In June 2023, the enhanced and tested Birth App was launched and made available for download at no additional cost on Google Play and the App Store.</p><p>Previous studies have reported that mobile health (mHealth) apps designed to prepare women for the forthcoming labor and birth can be beneficial in terms of a better experience and labor outcome [<xref ref-type="bibr" rid="ref16">16</xref>-<xref ref-type="bibr" rid="ref18">18</xref>]. Fleming and colleagues [<xref ref-type="bibr" rid="ref19">19</xref>] demonstrated the importance of ensuring credible electronic links, cell phone technology, videos, and access to hospital websites, which are created by the health care provider to educate expectant parents. Evans and colleagues [<xref ref-type="bibr" rid="ref20">20</xref>] also highlighted the need for mobile apps developed in cocreation with users, researchers, and developers. They also emphasize that in maternity care, providers face significant challenges in identifying and endorsing digital health apps due to a lack of transparency regarding their evidence base, development methodology, and clinical validation. However, only a few evidence-based and codesigned apps have been developed and are available on the market [<xref ref-type="bibr" rid="ref21">21</xref>].</p><p>The advent of digital health technologies offering unprecedented opportunities for patient engagement and monitoring is rising, and mHealth apps have gained attention in various fields to improve women&#x2019;s health [<xref ref-type="bibr" rid="ref22">22</xref>]. However, the proliferation of such apps has not always been accompanied by rigorous scientific validation, raising concerns regarding their efficacy and safety [<xref ref-type="bibr" rid="ref23">23</xref>]. A review of mobile apps for women with anxiety in pregnancy showed that a majority of the apps (n=39) offered exclusively mind-body techniques and only a few offered informational support. A few of the apps (21%) reported involvement from professionals during development, and only one presented empirical evidence supporting effectiveness and user acceptability [<xref ref-type="bibr" rid="ref20">20</xref>].</p><p>Apps can offer access to digital education and training programs, enabling women and their partners to gain new skills regardless of their geographical location, which can be particularly beneficial for women living in rural or remote areas. More knowledge is needed about how evidence-informed apps can be a complement to usual customary antenatal education [<xref ref-type="bibr" rid="ref21">21</xref>].</p><p>Therefore, the aim of the project was to investigate whether women using the Birth App during pregnancy and childbirth experienced less distress during early labor, compared to women who received standard antenatal care. We hypothesized that women assigned to the Birth App groups would experience lower emotional stress during early labor compared to a control group that did not have access to the app. In addition, we hypothesized that women assigned to the Birth App Plus group would have additional benefits from using the app.</p></sec><sec id="s2" sec-type="methods"><title>Methods</title><sec id="s2-1"><title>Swedish Study Setting</title><p>Midwives in Sweden have an autonomous role as primary care providers for women with uncomplicated pregnancies, labor, and birth, while obstetricians are consulted and responsible if complications arise. The antenatal care operates through community-based public health clinics, with midwives serving as the primary caregivers. Health education is a crucial aspect of prenatal care, focusing on lifestyle changes during pregnancy, and parental education is offered mainly to first-time parents. Almost all Swedish women give birth in hospitals, and maternity care is publicly funded [<xref ref-type="bibr" rid="ref24">24</xref>].</p></sec><sec id="s2-2"><title>Trial Design</title><p>This RCT applied online recruiting in a nonblinded 3-part blended care model with a 1:1:1 randomization design. Group 1: Women assigned to the Birth App intervention. Group 2: Women assigned to Birth App Plus, combining the app with in-person additional midwifery contacts. Group 3: The control group received standard antenatal care, based on the preparations available at the antenatal care clinic where the woman was enrolled for pregnancy checkups.</p></sec><sec id="s2-3"><title>Recruitment</title><p>Pregnant nulliparous women were informed and invited to participate in the research study through a national invitation on the social media platforms Facebook and Instagram via paid advertising. Eligibility criteria included: nulliparous women planning to undergo a vaginal birth, pregnancy between 25+0 and 35+6 weeks at the time of registration, ability to speak, read, and understand Swedish, and access to a smartphone or tablet. Women interested in participating reported their interest on the research website. After receiving information about regulations according to the General Data Protection Regulation (GDPR) and signing digital informed consent, they were automatically linked to the baseline digital questionnaire in the Research Electronic Data Capture system (REDCap; Vanderbilt University) [<xref ref-type="bibr" rid="ref25">25</xref>]. Thereafter, women were randomized by one of the research midwives using a block randomization of 6 with a computer-generated allocation list in Excel. Next, participating women were informed about their allocated group by email and SMS from the research midwives.</p></sec><sec id="s2-4"><title>Calculation of Sample Size</title><p>The aim of this study was to investigate whether women using the Birth App during pregnancy and childbirth experienced less distress during early labor, compared to women not using the app. The level of emotional distress has been tested in previous literature using ELEQ in different settings [<xref ref-type="bibr" rid="ref26">26</xref>,<xref ref-type="bibr" rid="ref27">27</xref>]. The primary outcome measure of this study was the Emotional Distress domain in the Swedish Early Labor Experience (SWE-ELEQ-PP). The calculation of sample size in the power analysis was guided by a study by &#x00C4;ngeby et al [<xref ref-type="bibr" rid="ref4">4</xref>] which demonstrated significant differences in emotional distress among first-time mothers who had to leave the labor ward in early labor. Women who were dissatisfied about leaving the labor ward in early labor (n=43) scored significantly higher regarding emotional distress compared to the women who were content (n=54), mean 3.00 (SD 1.16) versus mean 2.58 (SD 1.01; <italic>P</italic>=.04) [<xref ref-type="bibr" rid="ref4">4</xref>].</p><p>The sample size was calculated using IBM SPSS version 28. The hypothesis was that the Birth App could enhance women&#x2019;s sense of security, thereby reducing stress and anxiety during early labor. The difference of 0.42 in the mean of emotional distress scores was used to guide the effect size for the power analysis. With a power level of 80% and a significance level of <italic>P</italic>&#x003C;.05, the required sample size was calculated to be 82 participants in each group to detect a significant difference in the primary outcome between one of the intervention groups and the control group. The significant difference is calculated between the control group and the 2 experimental groups. Previous research with the targeted group of pregnant women has shown a 50% dropout rate, necessitating the inclusion of 160 participants in each group for sufficient statistical analysis [<xref ref-type="bibr" rid="ref28">28</xref>]. Therefore, the total number of participants needed for the study was 480 women. In addition, participants who underwent induction of labor and did not spend time at home during early labor were thus unable to contribute to the primary analysis. In Sweden, approximately 25% of nulliparous women undergo induction, which needs to be considered as well for power estimation [<xref ref-type="bibr" rid="ref29">29</xref>].</p></sec><sec id="s2-5"><title>Interventions</title><sec id="s2-5-1"><title>Intervention Group Birth App</title><p>Participants randomized to the Birth App group received an email with personalized instructions for downloading the app via TestFlight for iPhone users and Google Play for Android users. Each participant was given a unique personal code from a pregenerated list, consisting of 4 capital letters and 4 numbers. No additional follow-up was provided thereafter. The app has 2 parts: one for education and practical exercises, and 1 for use during actual labor. It aims to boost women&#x2019;s self-efficacy and sense of security. The partner&#x2019;s involvement is emphasized, with a dedicated section for nonpharmacological pain relief methods. The app provides information on the partner&#x2019;s supportive role and includes exercises on contraction signs, closeness, and various pressure techniques to help the laboring woman during childbirth [<xref ref-type="bibr" rid="ref14">14</xref>].</p></sec><sec id="s2-5-2"><title>Intervention Group Birth App Plus</title><p>Participants randomized to the Birth App Plus group received personalized instructions identical to those given to the Birth App group. In addition, they were contacted by a research midwife via SMS, email, or phone conversations 2 weeks after enrollment, based on their preferred contact method. During the initial contact, questions regarding the app&#x2019;s use and usability were addressed. The midwife was also available to answer other questions related to the method or its use during pregnancy. Topics such as feelings toward the forthcoming birth, coping ability, and partner support were discussed. This conversation aimed to strengthen the effectiveness of app usage and thereby enhance the outcomes. A second follow-up contact was conducted 2&#x2010;6 weeks after the first contact, serving as a follow-up to the previous conversation.</p></sec><sec id="s2-5-3"><title>Control Group</title><p>Participants in the control group received usual antenatal care, where antenatal education is integrated into the care and provided free of charge by midwives and offered to all primiparous women and their partners.</p></sec></sec><sec id="s2-6"><title>Questionnaire at Baseline</title><p>Participants completed a web-based questionnaire in REDCap prior to randomization, with baseline data accordingly.</p><sec id="s2-6-1"><title>Demographic Characteristics</title><p>Participating women provided information about age, marital status, level of education, profession, country of birth, as well as information concerning their physical and mental health.</p></sec><sec id="s2-6-2"><title>Psychological Traits Measures</title><p>Using various psychological assessment tools at enrollment allows us to control for personality traits, ensuring these traits do not confound the study results. This approach enhances the validity and reliability of the study findings by accounting for individual differences that might influence responses to the intervention.</p><p>Sense of Coherence-13 (SOC) [<xref ref-type="bibr" rid="ref30">30</xref>] was used to examine the resources of promoting individual health, comprising (1) comprehensibility, (2) manageability, and (3) meaningfulness dimensions [<xref ref-type="bibr" rid="ref31">31</xref>]. The scale can be used as a continuous variable from 13 to 91, or categorized into low (<underline>&#x003C;</underline>60), moderate (61-75), or high (<underline>&#x003E;</underline>76) SOC [<xref ref-type="bibr" rid="ref32">32</xref>]. A strong sense of coherence helps individuals mobilize resources to cope with stressors effectively, contributing to better health outcomes and a higher quality of life.</p><p>The Swedish Childbirth Self-Efficacy Inventory (Swe-CBSEI) [<xref ref-type="bibr" rid="ref33">33</xref>] is a prevalidated, self-report instrument that measures an individual&#x2019;s expectancies of coping with childbirth and describes an individual&#x2019;s belief in their own ability to behave in a particular way in a specific situation [<xref ref-type="bibr" rid="ref27">27</xref>]. The scale measures 2 different subscales during active labor: outcome expectancy (O-AL) and self-efficacy expectancy (E-AL), and a higher value represents a higher degree of E-AL, ranging from 15 to 150. It measures a person&#x2019;s belief in their capacity to act effectively in specific childbirth-related situations.</p><p>The Fear of Birth Scale (FOBS) [<xref ref-type="bibr" rid="ref34">34</xref>] was used to measure fear of birth. The FOBS is based on 2 visual analog scales from 1 to 100 for identifying fear of birth during pregnancy, and a cutoff value of &#x003E;60 is normally used for identifying women with fear of birth [<xref ref-type="bibr" rid="ref34">34</xref>]. High scores on FOBS indicate significant fear of childbirth, which can lead to increased anxiety, stress, and potential negative birth experiences. We used FOBS to measure fear of childbirth at baseline and follow-up, with questions adapted to assess fear retrospectively and for future births. This approach allowed us to track changes in fear over time and create a composite variable to categorize fear levels across different time points.</p></sec></sec><sec id="s2-7"><title>Questionnaire at Follow-Up With Outcome Measures</title><p>One month postpartum, participants received a link to a follow-up questionnaire in REDCap.</p><p>The primary outcome was emotional distress in early labor. To address the primary outcome, SWE-ELEQ-PP [<xref ref-type="bibr" rid="ref4">4</xref>] was used. The questionnaire was designed to measure women&#x2019;s experience during early labor. The questionnaire covers 3 subscales: emotional distress (6 items), emotional well-being (7 items), and experiences of midwifery care (10 items). Emotional well-being and experiences of midwifery care are ranked from 1 to 5, meaning a higher value represents a more positive value. The subscale Emotional distress, ranked from 15, meaning a higher value represents a higher distress, was used as the primary outcome.</p><p>The questionnaire included study-specific questions about childbirth events such as labor onset, hours in labor before hospital admission, pain relief methods used during labor, and birthing mode. In addition, questions about the gestational week at birth, the baby&#x2019;s care in the Neonatal Intensive Care Unit, and the maternity clinic where the birth took place.</p><p>The secondary outcomes were mode of birth, emotional well-being in early labor, and midwifery support during early labor (SWE-ELEQ-PP), childbirth experience, support from partner, pain relief methods, and fear of birth in a potential future birth.</p><p>The Childbirth Experience Questionnaire (CEQ) [<xref ref-type="bibr" rid="ref35">35</xref>] was used to measure the total multidimensional childbirth experience. CEQ is developed and validated in Sweden and represents 4 domains or subscales of childbirth experience. Own capacity (8 items), perceived safety (6 items), professional support (5 items), and participation (3 items). Higher values represent a more positive experience in all subscales.</p><p>The Birth Companion Support Questionnaire (BCSQ) was used to measure women&#x2019;s perceptions of companion support during childbirth, with 2 subscales: emotional support (8 items) and tangible support (6 items). Ranging from 1 to 4, with a higher value representing a higher perceived support from the partner [<xref ref-type="bibr" rid="ref36">36</xref>].</p><p>The FOBS, rephrased as &#x201C;when thinking about potential future birth,&#x201D; was used to measure fear in forthcoming births. The scale ranges from 1 to 100, and a higher value represents a higher degree of fear in forthcoming births [<xref ref-type="bibr" rid="ref37">37</xref>].</p></sec><sec id="s2-8"><title>Statistical Methods</title><p>Descriptive statistics for each group, such as mean, SD, median, and frequencies for categorical variables, were initially compiled. The chi-square test was used to examine differences between groups for categorical variables by comparing observed frequencies with expected frequencies to determine whether there was a statistically significant difference. ANOVA was used to compare means between the 3 groups for continuous variables. If ANOVA showed a significant difference, the Tukey post hoc test was used to identify group differences. Sensitivity testing was conducted by analyzing subgroups or using alternative statistical methods to explore differences between the intervention groups and the control group.</p><p>Pairwise testing was used to explore differences in the FOBS scores before and after childbirth. This statistical method allows for the comparison of each participant&#x2019;s scores at 2 different time points, thereby accounting for individual variability and providing a more accurate assessment of changes over time. All outcomes were analyzed according to the intention-to-treat principle. Since the primary outcome was emotional distress during early labor, only women with spontaneous labor onset were included in the analysis of primary and secondary outcomes. Women with induced labor were excluded, since they were hospitalized before labor onset. The data were analyzed using IBM SPSS Statistics version 28, with a <italic>P</italic>&#x003C;.05 considered statistically significant [<xref ref-type="bibr" rid="ref38">38</xref>].</p></sec><sec id="s2-9"><title>Ethical Considerations</title><p>This study was approved by the Swedish Ethical Board (2021&#x2010;03028) and registered in ClinicalTrials.gov (NCT05122390), and the first version of the protocol was uploaded on November 16, 2021. No deviations from the registered protocol occurred. All participating women provided informed consent via REDCap after receiving study information and information about GDPR. To ensure confidentiality of the participants, all registered names and emails were replaced by a system-generated number provided in REDCap. This number was used to integrate their individual codes in the app, and data from the app was transferred to the researcher via a secure portal at Karlstad University, Sunet Drive. Participants completing the follow-up questionnaire received a gift card valued at SEK 200 (US $20.96) for use in a supermarket. No potential risks to participants were identified in this trial.</p></sec></sec><sec id="s3" sec-type="results"><title>Results</title><p>Digital advertisements via social media were conducted from October 15, 2022, to March 15, 2023. A total of 539 women registered for participation in the study website. Following redirection to REDCap, 461 women were assessed for eligibility and 391 women were allocated to the study (<xref ref-type="fig" rid="figure1">Figure 1</xref>).</p><p>A total of 391 women completed the baseline questionnaire and 335 women responded to the questionnaire 1 month postpartum, yielding a response rate of 85.6%. At follow-up, 103 women in the Birth App group, 114 women in the Birth App Plus group, and 118 women in the control group completed the questionnaire. The mean age of the respondents was 31.30 (SD 3.70), 30.89 (SD 3.75), and 30.89 (SD 3.81) years, respectively. Most participants lived with a partner, had a university education, and were born in Sweden. Participants in all 3 groups reported similar values for the SOC, the CBSEI, and the FOBS at baseline. More than half of the participants attended antenatal birth classes during pregnancy. No statistically significant differences were observed between the intervention and control groups at baseline. No side effects such as unplanned out-of-hospital births were identified during the trial (<xref ref-type="table" rid="table1">Table 1</xref>).</p><p>Participating women gave birth in all regions of Sweden. Most women gave birth in the Stockholm-Gotland region (100/335, 29.8%), followed by the Mid-Sweden region (86/335, 25.6%), south-east region (55/335, 16.4%), western region (34/335, 10.2%) and least in northern region (28/335, 8.4%) and southern region (27/335, 8.1%).</p><fig position="float" id="figure1"><label>Figure 1.</label><caption><p>Flowchart of participants. REDCap: Research Electronic Data Capture.</p></caption><graphic alt-version="no" mimetype="image" position="float" xlink:type="simple" xlink:href="jmir_v27i1e72807_fig01.png"/></fig><table-wrap id="t1" position="float"><label>Table 1.</label><caption><p>Characteristics of the participants (N=391).</p></caption><table id="table1" frame="hsides" rules="groups"><thead><tr><td align="left" valign="bottom"/><td align="left" valign="bottom">Birth App (n=125)</td><td align="left" valign="bottom">Birth App Plus (n=134)</td><td align="left" valign="bottom">Control (n=132)</td><td align="left" valign="bottom"><italic>P</italic> value</td></tr></thead><tbody><tr><td align="left" valign="top">Age, mean (SD)</td><td align="left" valign="top">31.30 (3.70)</td><td align="left" valign="top">30.89 (3.75)</td><td align="left" valign="top">30.89 (3.81)</td><td align="left" valign="top">.87<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr><tr><td align="left" valign="top">Highest education level, n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top">.19<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Primary or high school</td><td align="left" valign="top">13 (10.6)</td><td align="left" valign="top">23 (17.2)</td><td align="left" valign="top">14 (10.9)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>College or University</td><td align="left" valign="top">110 (89.4)</td><td align="left" valign="top">111 (82.8)</td><td align="left" valign="top">115 (89.1)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top">Marital status, n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top">.68<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Living with partner</td><td align="left" valign="top">120 (97.6)</td><td align="left" valign="top">132 (98.5)</td><td align="left" valign="top">125 (96.9)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Living alone</td><td align="left" valign="top">3 (.4)</td><td align="left" valign="top">2 (1.5)</td><td align="left" valign="top">4 (3.1)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top">Country of birth, n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top">.14<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Sweden</td><td align="left" valign="top">103 (83.7)</td><td align="left" valign="top">223 (91.8)</td><td align="left" valign="top">113 (87.6)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Outside of Sweden</td><td align="left" valign="top">20 (16.3)</td><td align="left" valign="top">11 (8.2)</td><td align="left" valign="top">16 (12.4)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top">SOC<sup><xref ref-type="table-fn" rid="table1fn2">b</xref></sup>, mean (SD)</td><td align="left" valign="top">64.9 (7.65)</td><td align="left" valign="top">64.5 (9.24)</td><td align="left" valign="top">64.0 (9.42)</td><td align="left" valign="top">.68<sup><xref ref-type="table-fn" rid="table1fn3">c</xref></sup></td></tr><tr><td align="left" valign="top">CBSEI<sup><xref ref-type="table-fn" rid="table1fn4">d</xref></sup>, mean (SD)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>O-AL<sup><xref ref-type="table-fn" rid="table1fn5">e</xref></sup></td><td align="left" valign="top">97.50 (22.89)</td><td align="left" valign="top">95.58 (25.21)</td><td align="left" valign="top">95.64 (23.06)</td><td align="left" valign="top">.77<sup><xref ref-type="table-fn" rid="table1fn3">c</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>E-AL<sup><xref ref-type="table-fn" rid="table1fn6">f</xref></sup></td><td align="left" valign="top">85.07 (20.85)</td><td align="left" valign="top">84.47 (26.06)</td><td align="left" valign="top">86.52 (26.27)</td><td align="left" valign="top">.78<sup><xref ref-type="table-fn" rid="table1fn3">c</xref></sup></td></tr><tr><td align="left" valign="top">FOBS<sup><xref ref-type="table-fn" rid="table1fn7">g</xref></sup>, mean (SD)</td><td align="left" valign="top">46.22 (24.42)</td><td align="left" valign="top">46.05 (24.41)</td><td align="left" valign="top">48.48 (23.31)</td><td align="left" valign="top">.67<sup><xref ref-type="table-fn" rid="table1fn3">c</xref></sup></td></tr><tr><td align="left" valign="top">FOBS <underline>&#x003E;</underline>60, n (%)</td><td align="left" valign="top">37 (31.4)</td><td align="left" valign="top">44 (33.1)</td><td align="left" valign="top">41 (33.1)</td><td align="left" valign="top">.94<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr><tr><td align="left" valign="top">Birth preparation course (answered after birth), n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Yes</td><td align="left" valign="top">71 (56.8)</td><td align="left" valign="top">87 (64.9)</td><td align="left" valign="top">83 (62.9)</td><td align="left" valign="top">.35<sup><xref ref-type="table-fn" rid="table1fn1">a</xref></sup></td></tr></tbody></table><table-wrap-foot><fn id="table1fn1"><p><sup>a</sup>Pearson <italic>&#x03C7;</italic><sup>2</sup> test.</p></fn><fn id="table1fn2"><p><sup>b</sup>SOC: Sense of Coherence.</p></fn><fn id="table1fn3"><p><sup>c</sup>ANOVA, post hoc Tukey.</p></fn><fn id="table1fn4"><p><sup>d</sup>CBSEI: Childbirth Self-Efficacy Inventory.</p></fn><fn id="table1fn5"><p><sup>e</sup>O-AL: outcome expectancy.</p></fn><fn id="table1fn6"><p><sup>f</sup>E-AL: self-efficacy expectancy.</p></fn><fn id="table1fn7"><p><sup>g</sup>FOBS: Fear of Birth Scale.</p></fn></table-wrap-foot></table-wrap><p>Most participants experienced a spontaneous onset of labor across all groups, with no significant statistical differences. A small number of women (n=8) had an elective cesarean section and were therefore removed from the analysis. Approximately 25% of participants had induced labor, with no significant differences between groups.</p><p>Women in the intervention groups remained at home longer during early labor compared to women in the control group, although this difference was not statistically significant (<italic>P</italic>=.32) (<xref ref-type="table" rid="table2">Table 2</xref>). To assess the robustness, we conducted a sensitivity analysis by combining the 2 intervention groups. The result showed a mean difference of 2.71 (CI &#x2212;1.51 to 6.93; <italic>P=</italic>.20). The mode of birth showed no significant differences between the groups. Most women used pharmacological pain relief during labor (Entonox and Epidurals) with no significant differences between groups.</p><table-wrap id="t2" position="float"><label>Table 2.</label><caption><p>Labor outcome at follow-up (n=335).</p></caption><table id="table2" frame="hsides" rules="groups"><thead><tr><td align="left" valign="bottom"/><td align="left" valign="bottom">App (n=103)</td><td align="left" valign="bottom">App Plus (n=114)</td><td align="left" valign="bottom">Control (n=118)</td><td align="left" valign="bottom"><italic>P</italic> value</td></tr></thead><tbody><tr><td align="left" valign="top" colspan="5">Labor onset, n (%)</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Spontaneous</td><td align="left" valign="top">68 (54.4)</td><td align="left" valign="top">83 (61.9)</td><td align="left" valign="top">86 (65.2)</td><td align="left" valign="top">.15<sup><xref ref-type="table-fn" rid="table2fn1">a</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Induction</td><td align="left" valign="top">34 (27.2)</td><td align="left" valign="top">29 (21.6)</td><td align="left" valign="top">27 (20.5)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Elective cesarean section</td><td align="left" valign="top">1 (0.8)</td><td align="left" valign="top">2 (1.5)</td><td align="left" valign="top">5 (3.8)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top">Length of latent phase before admission in hours, mean (SD)</td><td align="left" valign="top">16.8 (20.45)</td><td align="left" valign="top">14.5 (16.82)</td><td align="left" valign="top">12.9 (15.99)</td><td align="left" valign="top">.31<sup><xref ref-type="table-fn" rid="table2fn1">a</xref></sup></td></tr><tr><td align="left" valign="top">Birth mode, n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Spontaneous vaginal birth</td><td align="left" valign="top">71 (69.6)</td><td align="left" valign="top">81 (71.1)</td><td align="left" valign="top">93 (78.8)</td><td align="left" valign="top">.43<sup><xref ref-type="table-fn" rid="table2fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Vacuum extraction</td><td align="left" valign="top">14 (13.7)</td><td align="left" valign="top">13 (11.4)</td><td align="left" valign="top">8 (6.8)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Acute cesarean section</td><td align="left" valign="top">17 (16.7)</td><td align="left" valign="top">20 (17.5)</td><td align="left" valign="top">17 (14.4)</td><td align="left" valign="top"/></tr><tr><td align="left" valign="top">Pharmacological pain relief, n (%)</td><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/><td align="left" valign="top"/></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Yes</td><td align="left" valign="top">88 (70.4)</td><td align="left" valign="top">98 (73.1)</td><td align="left" valign="top">100 (75.8)</td><td align="left" valign="top">.47<sup><xref ref-type="table-fn" rid="table2fn2">b</xref></sup></td></tr></tbody></table><table-wrap-foot><fn id="table2fn1"><p><sup>a</sup>ANOVA, post hoc test Tukey.</p></fn><fn id="table2fn2"><p><sup>b</sup>Pearson <italic>&#x03C7;</italic><sup>2</sup> test.</p></fn></table-wrap-foot></table-wrap><p>For the primary outcome, emotional distress in early labor showed similar mean values across groups (Birth App: mean 2.42, SD 0.78; Birth App Plus: mean 2.29, SD 0.84; and control group: mean 2.45, SD 0.83), with a <italic>P</italic> value of .44 (<xref ref-type="table" rid="table3">Table 3</xref>). A sensitivity analysis, comparing intervention groups to the control group, showed the mean difference of &#x2212;0.085 (CI &#x2212;0.276 to 0.106; <italic>P=</italic>.38). For secondary outcomes, women in all groups reported nearly identical values for emotional well-being and midwifery support, as measured by the 2 subscales in the SWE-ELEQ-PP. Regarding the dimensions in the CEQ, including own capacity, professional support, and participation, similar mean values were reported across the groups. However, for the subscale perceived safety, women in the APP Plus group scored higher (mean 3.28, SD 0.62), compared to the Birth App (mean 3.14, SD 0.62) and the control group (mean 3.14, SD 0.71), though these differences were not statistically significant. When measuring partner support, no statistical differences were found between groups. All women rated their emotional support statistically significantly higher than tangible support, with similar mean values across all groups.</p><table-wrap id="t3" position="float"><label>Table 3.</label><caption><p>Childbirth experience for women with spontaneous onset of labor (n=234).</p></caption><table id="table3" frame="hsides" rules="groups"><thead><tr><td align="left" valign="bottom"/><td align="left" valign="bottom">Birth App (n=67)</td><td align="left" valign="bottom">Birth Plus (n=81)</td><td align="left" valign="bottom">Control (n=86)</td><td align="left" valign="bottom"><italic>P</italic> value</td></tr></thead><tbody><tr><td align="left" valign="top" colspan="5">SWE-ELEQ<sup><xref ref-type="table-fn" rid="table3fn1">a</xref></sup>, mean (SD)</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Emotional distress</td><td align="left" valign="top">2.42 (0.78)</td><td align="left" valign="top">2.29 (0.84)</td><td align="left" valign="top">2.45 (0.83)</td><td align="left" valign="top">.45<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Emotional well-being</td><td align="left" valign="top">3.79 (0.68)</td><td align="left" valign="top">3.91 (0.70)</td><td align="left" valign="top">3.83 (0.73)</td><td align="left" valign="top">.54<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Midwifery care</td><td align="left" valign="top">4.39 (0.66)</td><td align="left" valign="top">4.32 (0.69)</td><td align="left" valign="top">4.38 (0.82)</td><td align="left" valign="top">.91<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top" colspan="5">CEQ<sup><xref ref-type="table-fn" rid="table3fn3">c</xref></sup>, mean (SD)</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Own capacity</td><td align="left" valign="top">2.66 (0.54)</td><td align="left" valign="top">2.79 (0.56)</td><td align="left" valign="top">2.76 (0.54)</td><td align="left" valign="top">.39<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Professional support</td><td align="left" valign="top">3.62 (0.59)</td><td align="left" valign="top">3.61 (0.47)</td><td align="left" valign="top">3.65 (0.53)</td><td align="left" valign="top">.90<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Perceived safety</td><td align="left" valign="top">3.14 (0.62)</td><td align="left" valign="top">3.28 (0.62)</td><td align="left" valign="top">3.14 (0.71)</td><td align="left" valign="top">.41<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Participation</td><td align="left" valign="top">3.25 (0.62)</td><td align="left" valign="top">3.39 (0.64)</td><td align="left" valign="top">3.33 (0.67)</td><td align="left" valign="top">.47<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top" colspan="5">SWE-BCSQ<sup><xref ref-type="table-fn" rid="table3fn4">d</xref></sup>, mean (SD)</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Emotional support</td><td align="left" valign="top">3.81 (0.27)</td><td align="left" valign="top">3.80 (0.33)</td><td align="left" valign="top">3.74 (0.45)</td><td align="left" valign="top">.33<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Tangible support</td><td align="left" valign="top">3.56 (0.60)</td><td align="left" valign="top">3.53 (0.59)</td><td align="left" valign="top">3.53 (0.64)</td><td align="left" valign="top">.63<sup><xref ref-type="table-fn" rid="table3fn2">b</xref></sup></td></tr></tbody></table><table-wrap-foot><fn id="table3fn1"><p><sup>a</sup>SWE-ELEQ: Swedish Early Labor Experience Questionnaire.</p></fn><fn id="table3fn2"><p><sup>b</sup>ANOVA, post hoc Tukey. Values are presented if a statistically significant difference occurs.</p></fn><fn id="table3fn3"><p><sup>c</sup>CEQ: Childbirth Experience Questionnaire.</p></fn><fn id="table3fn4"><p><sup>d</sup>SWE-BCSQ: Sweden Birth Companion Support Questionnaire.</p></fn></table-wrap-foot></table-wrap><p>When assessing fear at baseline, women in all groups scored similar mean values, Birth App (mean 45.7, SD 24.6), Birth App Plus (mean 44.9, SD 25.3), and control group (mean 47.0, SD 22.6; <italic>P</italic>=.86; <xref ref-type="table" rid="table4">Table 4</xref>). When assessing their fear of childbirth in forthcoming births, the intervention groups indicated lower mean values than the control group (mean 32.78, SD 28.43 and mean 31.17, SD 31.40 vs mean 38.47, SD 32.17; <italic>P</italic>=.07). In a sensitivity test, using pairwise testing, we were able to control for individual differences and obtain a clearer understanding of the impact of the intervention on participants&#x2019; fear of childbirth. It revealed a statistically significant difference for both intervention groups (<italic>P=</italic>.002 and <italic>P</italic>&#x003C;.001) with a medium effect size according to Cohen <italic>d</italic> (0.40 and 0.47), while the control group showed a nonsignificant value (<italic>P=</italic>.08).</p><table-wrap id="t4" position="float"><label>Table 4.</label><caption><p>Fear of birth repeated measures for women with spontaneous onset of labor (n=234).</p></caption><table id="table4" frame="hsides" rules="groups"><thead><tr><td align="left" valign="bottom">Measure</td><td align="left" valign="bottom">Birth App (n=67)</td><td align="left" valign="bottom">Birth App Plus (n=81)</td><td align="left" valign="bottom">Control (n=86)</td><td align="left" valign="bottom"><italic>P</italic><sup><xref ref-type="table-fn" rid="table4fn1">a</xref></sup> value</td></tr></thead><tbody><tr><td align="left" valign="top" colspan="5">FOBS<sup><xref ref-type="table-fn" rid="table4fn2">b</xref></sup>, mean (SD)</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Baseline</td><td align="char" char="." valign="top">45.65 (24.56)</td><td align="char" char="." valign="top">44.92 (25.27)</td><td align="char" char="." valign="top">46.96 (22.64)</td><td align="char" char="." valign="top">.86</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Forthcoming birth</td><td align="char" char="." valign="top">32.78 (28.43)</td><td align="char" char="." valign="top">31.17 (31.40)</td><td align="char" char="." valign="top">38.47 (32.17)</td><td align="char" char="." valign="top">.06</td></tr><tr><td align="left" valign="top" colspan="5">Baseline vs forthcoming birth</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Mean difference (95% CI)</td><td align="left" valign="top">13.53 (5.12 to 21.92)</td><td align="left" valign="top">14.59 (7.75 to 21.42)</td><td align="left" valign="top">6.78 (&#x2013;0.95 to 14.53)</td><td align="left" valign="top">&#x2014;<sup><xref ref-type="table-fn" rid="table4fn3">c</xref></sup></td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content><italic>t</italic> value (<italic>df</italic>)</td><td align="left" valign="top">3.21 (62)</td><td align="left" valign="top">4.24 (81)</td><td align="left" valign="top">1.74 (75)</td><td align="left" valign="top">&#x2014;</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content><italic>P</italic> value<sup><xref ref-type="table-fn" rid="table4fn4">d</xref></sup></td><td align="left" valign="top">.002</td><td align="left" valign="top">&#x003C;.001</td><td align="left" valign="top">.08</td><td align="left" valign="top">&#x2014;</td></tr><tr><td align="left" valign="top"><named-content content-type="indent">&#x00A0;&#x00A0;&#x00A0;&#x00A0;</named-content>Cohen <italic>d</italic></td><td align="left" valign="top">0.40</td><td align="left" valign="top">0.47</td><td align="left" valign="top">0.20</td><td align="left" valign="top">&#x2014;</td></tr></tbody></table><table-wrap-foot><fn id="table4fn1"><p><sup>a</sup>ANOVA, post hoc Tukey</p></fn><fn id="table4fn2"><p><sup>b</sup>FOBS: Fear of Birth Scale.</p></fn><fn id="table4fn3"><p><sup>c</sup>Not applicable.</p></fn><fn id="table4fn4"><p><sup>d</sup>Paired sample effect sizes<italic>.</italic></p></fn></table-wrap-foot></table-wrap></sec><sec id="s4" sec-type="discussion"><title>Discussion</title><sec id="s4-1"><title>Principal Findings and Comparison With Prior Work</title><p>Our study compared women using the Birth App during pregnancy and childbirth with customary antenatal care. Women in the Birth App Plus group, which included additional midwifery support, reported less emotional distress during early labor, but not at a statistically significant level. No side effects or potential risk factors were identified in the RCT.</p><p>Our hypothesis that women in the intervention groups experienced less distress in early labor could not be established. Previous research from other studies testing different types of interventions aimed at reducing early labor distress did not show statistically significant differences either [<xref ref-type="bibr" rid="ref27">27</xref>,<xref ref-type="bibr" rid="ref39">39</xref>,<xref ref-type="bibr" rid="ref40">40</xref>]. Women in the intervention groups stayed at home slightly longer during early labor compared to women in the control group, although with considerable variation. This suggests that the app functions can be a useful tool for pregnant women and increase coping and management ability during early labor. Similar results were also identified in our previous pilot study, showing high usability and usefulness [<xref ref-type="bibr" rid="ref14">14</xref>].</p><p>For secondary outcomes, the 4 different dimensions of childbirth were similar in all groups. However, for the subscale perceived safety, women in the APP Plus group scored higher, compared to the other groups, although not reaching a statistically significant difference. Dencker and colleagues [<xref ref-type="bibr" rid="ref35">35</xref>] demonstrated that nonvaginal births, oxytocin augmentation, and longer labor negatively affected all subscales. For the subscale perceived safety, an intercorrelation between fear, sense of security, and negative memories from childbirth was established [<xref ref-type="bibr" rid="ref35">35</xref>]. A systematic review indicated that mindfulness-based interventions could reduce fear of childbirth and promote self-efficacy [<xref ref-type="bibr" rid="ref41">41</xref>]. Another study by Carlsson et al [<xref ref-type="bibr" rid="ref42">42</xref>] found that self-efficacy correlated with reduced use of epidural analgesia among primiparous women, which may reflect their ability to exert control and experience safety as observed in this study.</p><p>In this study, fear of forthcoming births was significantly lower in both intervention groups compared to the control group. By using pairwise testing, we were able to control individual differences and obtain a clearer understanding of the impact of the intervention on participants&#x2019; fear of childbirth. Klabbers et al [<xref ref-type="bibr" rid="ref43">43</xref>] showed in an RCT that haptotherapy could significantly reduce fear of birth compared to psychoeducation via the internet and usual care. Haptotherapy is designed to promote a more positive attitude in pregnant women and change cognitive appraisal to improve readiness for childbirth [<xref ref-type="bibr" rid="ref44">44</xref>]. The Birth App, tested in this study, is based on the Birth Without Fear method, which also focuses on cognitive aspects, aiming to strengthen both physical and emotional capacity [<xref ref-type="bibr" rid="ref15">15</xref>]. Other studies have shown the importance of tested and valid apps for pregnant women, especially for women with anxiety during pregnancy [<xref ref-type="bibr" rid="ref20">20</xref>] and emphasize mHealth apps to align with pregnant women&#x2019;s preferences for an mHealth app during pregnancy [<xref ref-type="bibr" rid="ref45">45</xref>,<xref ref-type="bibr" rid="ref46">46</xref>].</p><p>A strength of this study is that the 3 groups were equal in background characteristics. The similarity in educational level across all groups increases the trustworthiness of our results. Another strength is the high response rate, with 85% of participating women completing the postpartum questionnaire, consistent across all groups. The majority had a spontaneous onset of labor, and the group with induced labor (25%) was identical to a national sample [<xref ref-type="bibr" rid="ref29">29</xref>]. In addition, online recruitment allowed women from all parts of Sweden to participate, providing a broad sample of primiparous women. Participating women gave birth in almost all maternity clinics in Sweden, which is a strength regarding generalization. The rate of acute cesarean section was similar in all groups, and the 16.2% rate of cesarean sections is lower than the average in Sweden [<xref ref-type="bibr" rid="ref29">29</xref>], and the reason for this can only be speculated about. The participating women were highly educated, slightly older, and interested in using different antenatal preparation methods, which possibly can explain the result.</p></sec><sec id="s4-2"><title>Limitations</title><p>This study also has some limitations. The participating women had a higher level of education compared to the Swedish female population of the same age. Sampling through social networks and the high educational level of participants may limit applicability to vulnerable populations since previous research has shown that women with lower education levels are less likely to use digital information [<xref ref-type="bibr" rid="ref47">47</xref>].</p><p>Another limitation is that most women in all groups participated in various antenatal classes, which may have provided additional education that we could not control for, potentially affecting the results. The control group could have accessed other digital tools or private antenatal classes, which could have diluted the effects. The participants were not restricted or prohibited from using other accessible apps, and it is possible that women randomized to the control group were dissatisfied with their enrollment and, therefore, used another app or attended private antenatal classes instead. Future studies should consider strategies to monitor or control app usage tracking to better isolate the effects of the intervention under investigation.</p><p>Another aspect is the number of women completing the research: Birth App group, n=103; Birth App Plus group, n=114; and control group, n=118. In the power calculation, we accounted for 160 participants in each group. However, the attrition rate was lower than expected, and the induction rate was accounted for; therefore, the expected power in all groups was achieved.</p><p>We also need to consider the fact that women may have used the app in terms of time differently, which may affect the result. However, in this study, the time-usage variable was not addressed in the planned RCT protocol uploaded in ClinicalTrials.gov (ref. no. NCT05122390). Future studies should incorporate mechanisms to track and analyze app usage patterns to better understand how engagement correlates with outcomes.</p></sec><sec id="s4-3"><title>Conclusions</title><p>The trial evaluating the Birth App yielded important findings. The hypothesis that the Birth App would reduce emotional distress in early labor was not confirmed in this study. Our results indicate that the app, in conjunction with additional midwifery support, can serve as a valuable tool for pregnant women and their partners, enhancing their confidence during early labor, especially for primiparous women with a fear of birth, which warrants further investigation.</p></sec></sec></body><back><ack><p>We are grateful to Professor Ingegerd Hildingsson and Professor Alkistis Skalkidou for their valuable support when designing the research project. We wish to thank Assistant Professor Malin Edqvist for assistance with knowledge about running a randomized controlled trial and valuable comments during proofreading. We wish to acknowledge Midwife Magdalena Fritzson and Midwife Nina Stanizewski for their valuable contributions during the data collection.</p><p>We used the generative artificial intelligence tool ChatGPT by OpenAI in certain parts for language editing.</p><p>This study was funded by Karlstad University and Region V&#x00E4;rmland as part of their Collaborative Funds (LIVFOU-969649 and LIVFOU981145). The study has been funded for a 4-year period, starting in January 2021.</p><p>The work of LHI was partly supported by the Knowledge Foundation of Sweden (KKS), Region V&#x00E4;rmland (grant RUN/230445), and the European Regional Development Fund (ERDF; grant 20365177) in connection with the DHINO 2 project, and Vinnova (grant 2018-03025) via the DigitalWell Arena project.</p></ack><notes><sec><title>Data Availability</title><p>The datasets generated or analyzed during this study are available from the corresponding author on reasonable request.</p></sec></notes><fn-group><fn fn-type="con"><p>K&#x00C4;, MJ, EB, CV, LHI, and AN contributed to the conceptualization of the study. K&#x00C4; and AN performed the formal analysis. K&#x00C4;, MJ, EB, CV, LHI, and AN were responsible for funding acquisition and investigation. K&#x00C4; administered the project. K&#x00C4;, LHI, and AN provided resources. K&#x00C4; and AN supervised the work. K&#x00C4;, MJ, EB, CV, LHI, and AN contributed to data visualization, writing of the original draft, as well as review and editing of the manuscript.</p></fn><fn fn-type="conflict"><p>None declared.</p></fn></fn-group><glossary><title>Abbreviations</title><def-list><def-item><term id="abb1">BCSQ</term><def><p>Birth Companion Support Questionnaire</p></def></def-item><def-item><term id="abb2">CEQ</term><def><p>Childbirth Experience Questionnaire</p></def></def-item><def-item><term id="abb3">E-AL</term><def><p>self-efficacy expectancy</p></def></def-item><def-item><term id="abb4">ELEQ</term><def><p>Early Labor Experience Questionnaire</p></def></def-item><def-item><term id="abb5">FOBS</term><def><p>Fear of Birth Scale</p></def></def-item><def-item><term id="abb6">GDPR</term><def><p>General Data Protection Regulation</p></def></def-item><def-item><term id="abb7">O-AL</term><def><p>outcome expectancy</p></def></def-item><def-item><term id="abb8">RCT</term><def><p>randomized controlled trial</p></def></def-item><def-item><term id="abb9">REDCap</term><def><p>Research Electronic Data Capture</p></def></def-item><def-item><term id="abb10">SOC</term><def><p>Sense of Coherence</p></def></def-item><def-item><term id="abb11">Swe-CBSEI</term><def><p>Swedish Childbirth Self-Efficacy Inventory</p></def></def-item></def-list></glossary><ref-list><title>References</title><ref id="ref1"><label>1</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Eri</surname><given-names>TS</given-names> </name><name name-style="western"><surname>Bondas</surname><given-names>T</given-names> </name><name name-style="western"><surname>Gross</surname><given-names>MM</given-names> </name><name name-style="western"><surname>Janssen</surname><given-names>P</given-names> </name><name name-style="western"><surname>Green</surname><given-names>JM</given-names> </name></person-group><article-title>A balancing act in an unknown territory: a metasynthesis of first-time mothers&#x2019; experiences in early labour</article-title><source>Midwifery</source><year>2015</year><month>03</month><volume>31</volume><issue>3</issue><fpage>e58</fpage><lpage>67</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2014.11.007</pub-id><pub-id pub-id-type="medline">25480147</pub-id></nlm-citation></ref><ref id="ref2"><label>2</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Grylka-Baeschlin</surname><given-names>S</given-names> </name><name name-style="western"><surname>Mueller</surname><given-names>AN</given-names> </name></person-group><article-title>Symptoms of onset of labour and early labour: a scoping review</article-title><source>Women Birth</source><year>2023</year><month>11</month><volume>36</volume><issue>6</issue><fpage>483</fpage><lpage>494</lpage><pub-id pub-id-type="doi">10.1016/j.wombi.2023.03.009</pub-id><pub-id pub-id-type="medline">37059644</pub-id></nlm-citation></ref><ref id="ref3"><label>3</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Janssen</surname><given-names>PA</given-names> </name><name name-style="western"><surname>Desmarais</surname><given-names>SL</given-names> </name></person-group><article-title>Development and psychometric properties of the Early Labour Experience Questionnaire (ELEQ)</article-title><source>Midwifery</source><year>2013</year><month>03</month><volume>29</volume><issue>3</issue><fpage>181</fpage><lpage>189</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2012.05.012</pub-id></nlm-citation></ref><ref id="ref4"><label>4</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>&#x00C4;ngeby</surname><given-names>K</given-names> </name><name name-style="western"><surname>Sandin-Boj&#x00F6;</surname><given-names>AK</given-names> </name><name name-style="western"><surname>Persenius</surname><given-names>M</given-names> </name><name name-style="western"><surname>Wilde-Larsson</surname><given-names>B</given-names> </name></person-group><article-title>Early Labour Experience Questionnaire: psychometric testing and women&#x2019;s experiences in a Swedish setting</article-title><source>Midwifery</source><year>2018</year><month>09</month><volume>64</volume><fpage>77</fpage><lpage>84</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2018.06.008</pub-id><pub-id pub-id-type="medline">29966880</pub-id></nlm-citation></ref><ref id="ref5"><label>5</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>&#x00C4;ngeby</surname><given-names>K</given-names> </name><name name-style="western"><surname>Sandin-Boj&#x00F6;</surname><given-names>AK</given-names> </name><name name-style="western"><surname>Persenius</surname><given-names>M</given-names> </name><name name-style="western"><surname>Wilde-Larsson</surname><given-names>B</given-names> </name></person-group><article-title>Women&#x2019;s labour experiences and quality of care in relation to a prolonged latent phase of labour</article-title><source>Midwifery</source><year>2019</year><month>10</month><volume>77</volume><fpage>155</fpage><lpage>164</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2019.07.006</pub-id><pub-id pub-id-type="medline">31369936</pub-id></nlm-citation></ref><ref id="ref6"><label>6</label><nlm-citation citation-type="book"><source>WHO Recommendations on Intrapartum Care for a Positive Childbirth Experience</source><year>2018</year><publisher-name>World Health Organization</publisher-name></nlm-citation></ref><ref id="ref7"><label>7</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Gagnon</surname><given-names>AJ</given-names> </name><name name-style="western"><surname>Sandall</surname><given-names>J</given-names> </name></person-group><article-title>Individual or group antenatal education for childbirth or parenthood, or both</article-title><source>Cochrane Database Syst Rev</source><year>2007</year><month>07</month><day>18</day><volume>2007</volume><issue>3</issue><fpage>CD002869</fpage><pub-id pub-id-type="doi">10.1002/14651858.CD002869.pub2</pub-id><pub-id pub-id-type="medline">17636711</pub-id></nlm-citation></ref><ref id="ref8"><label>8</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Maimburg</surname><given-names>RD</given-names> </name><name name-style="western"><surname>Vaeth</surname><given-names>M</given-names> </name><name name-style="western"><surname>D&#x00FC;rr</surname><given-names>J</given-names> </name><name name-style="western"><surname>Hvidman</surname><given-names>L</given-names> </name><name name-style="western"><surname>Olsen</surname><given-names>J</given-names> </name></person-group><article-title>Randomised trial of structured antenatal training sessions to improve the birth process</article-title><source>BJOG</source><year>2010</year><month>07</month><volume>117</volume><issue>8</issue><fpage>921</fpage><lpage>928</lpage><pub-id pub-id-type="doi">10.1111/j.1471-0528.2010.02584.x</pub-id><pub-id pub-id-type="medline">20536430</pub-id></nlm-citation></ref><ref id="ref9"><label>9</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Maimburg</surname><given-names>RD</given-names> </name><name name-style="western"><surname>V&#x00E6;th</surname><given-names>M</given-names> </name><name name-style="western"><surname>Dahlen</surname><given-names>H</given-names> </name></person-group><article-title>Women&#x2019;s experience of childbirth - a five year follow-up of the randomised controlled trial &#x201C;Ready for Child Trial&#x201D;</article-title><source>Women Birth</source><year>2016</year><month>10</month><volume>29</volume><issue>5</issue><fpage>450</fpage><lpage>454</lpage><pub-id pub-id-type="doi">10.1016/j.wombi.2016.02.003</pub-id><pub-id pub-id-type="medline">27038559</pub-id></nlm-citation></ref><ref id="ref10"><label>10</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Bergstr&#x00F6;m</surname><given-names>M</given-names> </name><name name-style="western"><surname>Kieler</surname><given-names>H</given-names> </name><name name-style="western"><surname>Waldenstr&#x00F6;m</surname><given-names>U</given-names> </name></person-group><article-title>Psychoprophylaxis during labor: associations with labor-related outcomes and experience of childbirth</article-title><source>Acta Obstet Gynecol Scand</source><year>2010</year><month>06</month><volume>89</volume><issue>6</issue><fpage>794</fpage><lpage>800</lpage><pub-id pub-id-type="doi">10.3109/00016341003694978</pub-id><pub-id pub-id-type="medline">20225989</pub-id></nlm-citation></ref><ref id="ref11"><label>11</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Duncan</surname><given-names>LG</given-names> </name><name name-style="western"><surname>Cohn</surname><given-names>MA</given-names> </name><name name-style="western"><surname>Chao</surname><given-names>MT</given-names> </name><name name-style="western"><surname>Cook</surname><given-names>JG</given-names> </name><name name-style="western"><surname>Riccobono</surname><given-names>J</given-names> </name><name name-style="western"><surname>Bardacke</surname><given-names>N</given-names> </name></person-group><article-title>Benefits of preparing for childbirth with mindfulness training: a randomized controlled trial with active comparison</article-title><source>BMC Pregnancy Childbirth</source><year>2017</year><month>05</month><day>12</day><volume>17</volume><issue>1</issue><fpage>140</fpage><pub-id pub-id-type="doi">10.1186/s12884-017-1319-3</pub-id><pub-id pub-id-type="medline">28499376</pub-id></nlm-citation></ref><ref id="ref12"><label>12</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Byrne</surname><given-names>J</given-names> </name><name name-style="western"><surname>Hauck</surname><given-names>Y</given-names> </name><name name-style="western"><surname>Fisher</surname><given-names>C</given-names> </name><name name-style="western"><surname>Bayes</surname><given-names>S</given-names> </name><name name-style="western"><surname>Schutze</surname><given-names>R</given-names> </name></person-group><article-title>Effectiveness of a mindfulness&#x2010;based childbirth education pilot study on maternal self&#x2010;efficacy and fear of childbirth</article-title><source>J Midwife Womens Health</source><year>2014</year><month>03</month><volume>59</volume><issue>2</issue><fpage>192</fpage><lpage>197</lpage><pub-id pub-id-type="doi">10.1111/jmwh.12075</pub-id></nlm-citation></ref><ref id="ref13"><label>13</label><nlm-citation citation-type="book"><person-group person-group-type="author"><name name-style="western"><surname>Heli</surname><given-names>S</given-names> </name></person-group><source>Confident Birth</source><year>2012</year><publisher-name>Pinter &#x0026; Martin</publisher-name></nlm-citation></ref><ref id="ref14"><label>14</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Fritzson</surname><given-names>M</given-names> </name><name name-style="western"><surname>Nordin</surname><given-names>A</given-names> </name><name name-style="western"><surname>B&#x00F8;r&#x00F8;sund</surname><given-names>E</given-names> </name><name name-style="western"><surname>Johansson</surname><given-names>M</given-names> </name><name name-style="western"><surname>Varsi</surname><given-names>C</given-names> </name><name name-style="western"><surname>&#x00C4;ngeby</surname><given-names>K</given-names> </name></person-group><article-title>A mobile application for early labour support -feasibility pilot study</article-title><source>Women Birth</source><year>2023</year><month>11</month><volume>36</volume><issue>6</issue><fpage>495</fpage><lpage>503</lpage><pub-id pub-id-type="doi">10.1016/j.wombi.2023.03.008</pub-id><pub-id pub-id-type="medline">37030985</pub-id></nlm-citation></ref><ref id="ref15"><label>15</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Iwaya</surname><given-names>LH</given-names> </name><name name-style="western"><surname>Nordin</surname><given-names>A</given-names> </name><name name-style="western"><surname>Fritsch</surname><given-names>L</given-names> </name><etal/></person-group><article-title>Early Labour App: developing a practice-based mobile health application for digital early labour support</article-title><source>Int J Med Inform</source><year>2023</year><month>09</month><volume>177</volume><fpage>105139</fpage><pub-id pub-id-type="doi">10.1016/j.ijmedinf.2023.105139</pub-id><pub-id pub-id-type="medline">37406571</pub-id></nlm-citation></ref><ref id="ref16"><label>16</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Khademioore</surname><given-names>S</given-names> </name><name name-style="western"><surname>Ebrahimi</surname><given-names>E</given-names> </name><name name-style="western"><surname>Khosravi</surname><given-names>A</given-names> </name><name name-style="western"><surname>Movahedi</surname><given-names>S</given-names> </name></person-group><article-title>The effect of an mHealth application based on continuous support and education on fear of childbirth, self-efficacy, and birth mode in primiparous women: a randomized controlled trial</article-title><source>PLoS One</source><year>2023</year><volume>18</volume><issue>11</issue><fpage>e0293815</fpage><pub-id pub-id-type="doi">10.1371/journal.pone.0293815</pub-id><pub-id pub-id-type="medline">37910495</pub-id></nlm-citation></ref><ref id="ref17"><label>17</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Zafman</surname><given-names>KB</given-names> </name><name name-style="western"><surname>Riegel</surname><given-names>ML</given-names> </name><name name-style="western"><surname>Levine</surname><given-names>LD</given-names> </name><name name-style="western"><surname>Hamm</surname><given-names>RF</given-names> </name></person-group><article-title>An interactive childbirth education platform to improve pregnancy-related anxiety: a randomized trial</article-title><source>Am J Obstet Gynecol</source><year>2023</year><month>07</month><volume>229</volume><issue>1</issue><fpage>67</fpage><pub-id pub-id-type="doi">10.1016/j.ajog.2023.04.007</pub-id><pub-id pub-id-type="medline">37054807</pub-id></nlm-citation></ref><ref id="ref18"><label>18</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Thijssen</surname><given-names>KMJ</given-names> </name><name name-style="western"><surname>Kierkels</surname><given-names>JJM</given-names> </name><name name-style="western"><surname>van Meurs</surname><given-names>A</given-names> </name><name name-style="western"><surname>Verhoeven</surname><given-names>CJ</given-names> </name><name name-style="western"><surname>van der Hout-van der Jagt</surname><given-names>MB</given-names> </name><name name-style="western"><surname>Oei</surname><given-names>SG</given-names> </name></person-group><article-title>Visualization of contractions: evaluation of a new experience design concept to enhance the childbirth experience</article-title><source>Birth</source><year>2023</year><month>12</month><volume>50</volume><issue>4</issue><fpage>1025</fpage><lpage>1033</lpage><pub-id pub-id-type="doi">10.1111/birt.12754</pub-id><pub-id pub-id-type="medline">37550881</pub-id></nlm-citation></ref><ref id="ref19"><label>19</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Fleming</surname><given-names>SE</given-names> </name><name name-style="western"><surname>Vandermause</surname><given-names>R</given-names> </name><name name-style="western"><surname>Shaw</surname><given-names>M</given-names> </name></person-group><article-title>First-time mothers preparing for birthing in an electronic world: internet and mobile phone technology</article-title><source>J Reprod Infant Psychol</source><year>2014</year><month>05</month><day>27</day><volume>32</volume><issue>3</issue><fpage>240</fpage><lpage>253</lpage><pub-id pub-id-type="doi">10.1080/02646838.2014.886104</pub-id></nlm-citation></ref><ref id="ref20"><label>20</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Evans</surname><given-names>K</given-names> </name><name name-style="western"><surname>Donelan</surname><given-names>J</given-names> </name><name name-style="western"><surname>Rennick-Egglestone</surname><given-names>S</given-names> </name><name name-style="western"><surname>Cox</surname><given-names>S</given-names> </name><name name-style="western"><surname>Kuipers</surname><given-names>Y</given-names> </name></person-group><article-title>Review of mobile apps for women with anxiety in pregnancy: maternity care professionals&#x2019; guide to locating and assessing anxiety apps</article-title><source>J Med Internet Res</source><year>2022</year><month>03</month><day>23</day><volume>24</volume><issue>3</issue><fpage>e31831</fpage><pub-id pub-id-type="doi">10.2196/31831</pub-id><pub-id pub-id-type="medline">35319482</pub-id></nlm-citation></ref><ref id="ref21"><label>21</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Frid</surname><given-names>G</given-names> </name><name name-style="western"><surname>Bogaert</surname><given-names>K</given-names> </name><name name-style="western"><surname>Chen</surname><given-names>KT</given-names> </name></person-group><article-title>Mobile health apps for pregnant women: systematic search, evaluation, and analysis of features</article-title><source>J Med Internet Res</source><year>2021</year><month>10</month><day>18</day><volume>23</volume><issue>10</issue><fpage>e25667</fpage><pub-id pub-id-type="doi">10.2196/25667</pub-id><pub-id pub-id-type="medline">34524100</pub-id></nlm-citation></ref><ref id="ref22"><label>22</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Bayrampour</surname><given-names>H</given-names> </name><name name-style="western"><surname>Trieu</surname><given-names>J</given-names> </name><name name-style="western"><surname>Tharmaratnam</surname><given-names>T</given-names> </name></person-group><article-title>Effectiveness of eHealth interventions to reduce perinatal anxiety: a systematic review and meta-analysis</article-title><source>J Clin Psychiatry</source><year>2019</year><month>01</month><day>22</day><volume>80</volume><issue>1</issue><fpage>18r12386</fpage><pub-id pub-id-type="doi">10.4088/JCP.18r12386</pub-id><pub-id pub-id-type="medline">30688418</pub-id></nlm-citation></ref><ref id="ref23"><label>23</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Dahlhausen</surname><given-names>F</given-names> </name><name name-style="western"><surname>Zinner</surname><given-names>M</given-names> </name><name name-style="western"><surname>Bieske</surname><given-names>L</given-names> </name><name name-style="western"><surname>Ehlers</surname><given-names>JP</given-names> </name><name name-style="western"><surname>Boehme</surname><given-names>P</given-names> </name><name name-style="western"><surname>Fehring</surname><given-names>L</given-names> </name></person-group><article-title>There&#x2019;s an app for that, but nobody&#x2019;s using it: insights on improving patient access and adherence to digital therapeutics in Germany</article-title><source>Digit Health</source><year>2022</year><volume>8</volume><fpage>20552076221104672</fpage><pub-id pub-id-type="doi">10.1177/20552076221104672</pub-id><pub-id pub-id-type="medline">35811758</pub-id></nlm-citation></ref><ref id="ref24"><label>24</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Lindgren</surname><given-names>H</given-names> </name><name name-style="western"><surname>Erlandsson</surname><given-names>K</given-names> </name></person-group><article-title>The MIDWIZE conceptual framework: a midwife-led care model that fits the Swedish health care system might after contextualization, fit others</article-title><source>BMC Res Notes</source><year>2022</year><month>09</month><day>23</day><volume>15</volume><issue>1</issue><fpage>306</fpage><pub-id pub-id-type="doi">10.1186/s13104-022-06198-7</pub-id><pub-id pub-id-type="medline">36138471</pub-id></nlm-citation></ref><ref id="ref25"><label>25</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Harris</surname><given-names>PA</given-names> </name><name name-style="western"><surname>Taylor</surname><given-names>R</given-names> </name><name name-style="western"><surname>Thielke</surname><given-names>R</given-names> </name><name name-style="western"><surname>Payne</surname><given-names>J</given-names> </name><name name-style="western"><surname>Gonzalez</surname><given-names>N</given-names> </name><name name-style="western"><surname>Conde</surname><given-names>JG</given-names> </name></person-group><article-title>Research electronic data capture (REDCap)--a metadata-driven methodology and workflow process for providing translational research informatics support</article-title><source>J Biomed Inform</source><year>2009</year><month>04</month><volume>42</volume><issue>2</issue><fpage>377</fpage><lpage>381</lpage><pub-id pub-id-type="doi">10.1016/j.jbi.2008.08.010</pub-id><pub-id pub-id-type="medline">18929686</pub-id></nlm-citation></ref><ref id="ref26"><label>26</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Myhre</surname><given-names>EL</given-names> </name><name name-style="western"><surname>Lukasse</surname><given-names>M</given-names> </name><name name-style="western"><surname>Reigstad</surname><given-names>MM</given-names> </name><name name-style="western"><surname>Holmstedt</surname><given-names>V</given-names> </name><name name-style="western"><surname>Dahl</surname><given-names>B</given-names> </name></person-group><article-title>A qualitative study of Norwegian first-time mothers&#x2019; information needs in pre-admission early labour</article-title><source>Midwifery</source><year>2021</year><month>09</month><volume>100</volume><fpage>103016</fpage><pub-id pub-id-type="doi">10.1016/j.midw.2021.103016</pub-id><pub-id pub-id-type="medline">33964565</pub-id></nlm-citation></ref><ref id="ref27"><label>27</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Edwards</surname><given-names>R</given-names> </name><name name-style="western"><surname>Way</surname><given-names>S</given-names> </name><name name-style="western"><surname>Hundley</surname><given-names>VA</given-names> </name></person-group><article-title>Let&#x2019;s talk early labour: The L-TEL randomised controlled trial</article-title><source>Women Birth</source><year>2023</year><month>11</month><volume>36</volume><issue>6</issue><fpage>552</fpage><lpage>560</lpage><pub-id pub-id-type="doi">10.1016/j.wombi.2023.07.132</pub-id><pub-id pub-id-type="medline">37562988</pub-id></nlm-citation></ref><ref id="ref28"><label>28</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Sj&#x00F6;mark</surname><given-names>J</given-names> </name><name name-style="western"><surname>Svanberg</surname><given-names>A</given-names> </name><name name-style="western"><surname>Viirman</surname><given-names>F</given-names> </name><etal/></person-group><article-title>Antepartum and labour-related single predictors of non-participation, dropout and lost to follow up in a randomised controlled trial comparing internet-based cognitive-behaviour therapy with treatment as usual for women with negative birth experiences and/or post-traumatic stress following childbirth</article-title><source>BMJ Open</source><year>2022</year><month>11</month><day>28</day><volume>12</volume><issue>11</issue><fpage>e063214</fpage><pub-id pub-id-type="doi">10.1136/bmjopen-2022-063214</pub-id><pub-id pub-id-type="medline">36442895</pub-id></nlm-citation></ref><ref id="ref29"><label>29</label><nlm-citation citation-type="report"><article-title>Graviditetsregistrets &#x00C5;rsrapport 2021</article-title><year>2022</year><access-date>2023-03-16</access-date><publisher-name>Graviditetsregistrets</publisher-name><comment><ext-link ext-link-type="uri" xlink:href="https://www.medscinet.com/GR/uploads/hemsida/dokumentarkiv/GR%20%C3%85rsrapport%202021_3.0.pdf">https://www.medscinet.com/GR/uploads/hemsida/dokumentarkiv/GR%20%C3%85rsrapport%202021_3.0.pdf</ext-link></comment></nlm-citation></ref><ref id="ref30"><label>30</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Antonovsky</surname><given-names>A</given-names> </name></person-group><article-title>The structure and properties of the sense of coherence scale</article-title><source>Soc Sci Med</source><year>1993</year><month>03</month><volume>36</volume><issue>6</issue><fpage>725</fpage><lpage>733</lpage><pub-id pub-id-type="doi">10.1016/0277-9536(93)90033-Z</pub-id></nlm-citation></ref><ref id="ref31"><label>31</label><nlm-citation citation-type="other"><person-group person-group-type="author"><name name-style="western"><surname>Alcantara</surname><given-names>J</given-names> </name><name name-style="western"><surname>Myers</surname><given-names>S</given-names> </name><name name-style="western"><surname>Emmanuel</surname><given-names>E</given-names> </name><name name-style="western"><surname>Grace</surname><given-names>S</given-names> </name></person-group><article-title>Sense of coherence in pregnancy: a systematic review of the literature</article-title><comment>Preprint posted online on 2023</comment><pub-id pub-id-type="doi">10.21203/rs.3.rs-2454507/v1</pub-id></nlm-citation></ref><ref id="ref32"><label>32</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Langius</surname><given-names>A</given-names> </name><name name-style="western"><surname>Bj&#x00F6;rvell</surname><given-names>H</given-names> </name><name name-style="western"><surname>Antonovsky</surname><given-names>A</given-names> </name></person-group><article-title>The sense of coherence concept and its relation to personality traits in Swedish samples</article-title><source>Scand J Caring Sci</source><year>1992</year><volume>6</volume><issue>3</issue><fpage>165</fpage><lpage>171</lpage><pub-id pub-id-type="doi">10.1111/j.1471-6712.1992.tb00146.x</pub-id><pub-id pub-id-type="medline">1439378</pub-id></nlm-citation></ref><ref id="ref33"><label>33</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Carlsson</surname><given-names>IM</given-names> </name><name name-style="western"><surname>Ziegert</surname><given-names>K</given-names> </name><name name-style="western"><surname>Nissen</surname><given-names>E</given-names> </name></person-group><article-title>Psychometric properties of the Swedish childbirth self-efficacy inventory (Swe-CBSEI)</article-title><source>BMC Pregnancy Childbirth</source><year>2014</year><month>12</month><volume>14</volume><issue>1</issue><fpage>1</fpage><lpage>11</lpage><pub-id pub-id-type="doi">10.1186/1471-2393-14-1</pub-id></nlm-citation></ref><ref id="ref34"><label>34</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Hildingsson</surname><given-names>I</given-names> </name><name name-style="western"><surname>Rubertsson</surname><given-names>C</given-names> </name><name name-style="western"><surname>Karlstr&#x00F6;m</surname><given-names>A</given-names> </name><name name-style="western"><surname>Haines</surname><given-names>H</given-names> </name></person-group><article-title>Exploring the Fear of Birth Scale in a mixed population of women of childbearing age-a Swedish pilot study</article-title><source>Women Birth</source><year>2018</year><month>10</month><volume>31</volume><issue>5</issue><fpage>407</fpage><lpage>413</lpage><pub-id pub-id-type="doi">10.1016/j.wombi.2017.12.005</pub-id><pub-id pub-id-type="medline">29249331</pub-id></nlm-citation></ref><ref id="ref35"><label>35</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Dencker</surname><given-names>A</given-names> </name><name name-style="western"><surname>Taft</surname><given-names>C</given-names> </name><name name-style="western"><surname>Bergqvist</surname><given-names>L</given-names> </name><name name-style="western"><surname>Lilja</surname><given-names>H</given-names> </name><name name-style="western"><surname>Berg</surname><given-names>M</given-names> </name></person-group><article-title>Childbirth Experience Questionnaire (CEQ): development and evaluation of a multidimensional instrument</article-title><source>BMC Pregnancy Childbirth</source><year>2010</year><month>12</month><day>10</day><volume>10</volume><issue>1</issue><fpage>81</fpage><pub-id pub-id-type="doi">10.1186/1471-2393-10-81</pub-id><pub-id pub-id-type="medline">21143961</pub-id></nlm-citation></ref><ref id="ref36"><label>36</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Dunne</surname><given-names>CL</given-names> </name><name name-style="western"><surname>Fraser</surname><given-names>J</given-names> </name><name name-style="western"><surname>Gardner</surname><given-names>GE</given-names> </name></person-group><article-title>Women&#x2019;s perceptions of social support during labour: development, reliability and validity of the Birth Companion Support Questionnaire</article-title><source>Midwifery</source><year>2014</year><month>07</month><volume>30</volume><issue>7</issue><fpage>847</fpage><lpage>852</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2013.10.010</pub-id><pub-id pub-id-type="medline">24290195</pub-id></nlm-citation></ref><ref id="ref37"><label>37</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Hildingsson</surname><given-names>I</given-names> </name></person-group><article-title>The trajectory of fear of birth during and after pregnancy in women living in a rural area far from the hospital and its labour ward</article-title><source>Rural Remote Health</source><year>2021</year><month>11</month><volume>21</volume><issue>4</issue><fpage>1</fpage><lpage>9</lpage><pub-id pub-id-type="doi">10.22605/RRH6974</pub-id><pub-id pub-id-type="medline">34763514</pub-id></nlm-citation></ref><ref id="ref38"><label>38</label><nlm-citation citation-type="report"><article-title>IBM SPSS statistics 210</article-title><year>2021</year><publisher-name>IBM Corp</publisher-name></nlm-citation></ref><ref id="ref39"><label>39</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Janssen</surname><given-names>PA</given-names> </name><name name-style="western"><surname>Desmarais</surname><given-names>SL</given-names> </name></person-group><article-title>Women&#x2019;s experience with early labour management at home vs. in hospital: a randomised controlled trial</article-title><source>Midwifery</source><year>2013</year><month>03</month><volume>29</volume><issue>3</issue><fpage>190</fpage><lpage>194</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2012.05.011</pub-id><pub-id pub-id-type="medline">22901494</pub-id></nlm-citation></ref><ref id="ref40"><label>40</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Myhre</surname><given-names>EL</given-names> </name><name name-style="western"><surname>Garnweidner-Holme</surname><given-names>L</given-names> </name><name name-style="western"><surname>Dahl</surname><given-names>B</given-names> </name><name name-style="western"><surname>Reigstad</surname><given-names>MM</given-names> </name><name name-style="western"><surname>Lukasse</surname><given-names>M</given-names> </name></person-group><article-title>Development of and experiences with an informational website on early labor: qualitative user involvement study</article-title><source>JMIR Form Res</source><year>2021</year><month>09</month><day>27</day><volume>5</volume><issue>9</issue><fpage>e28698</fpage><pub-id pub-id-type="doi">10.2196/28698</pub-id><pub-id pub-id-type="medline">34569940</pub-id></nlm-citation></ref><ref id="ref41"><label>41</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Stoll</surname><given-names>K</given-names> </name><name name-style="western"><surname>Swift</surname><given-names>EM</given-names> </name><name name-style="western"><surname>Fairbrother</surname><given-names>N</given-names> </name><name name-style="western"><surname>Nethery</surname><given-names>E</given-names> </name><name name-style="western"><surname>Janssen</surname><given-names>P</given-names> </name></person-group><article-title>A systematic review of nonpharmacological prenatal interventions for pregnancy-specific anxiety and fear of childbirth</article-title><source>Birth</source><year>2018</year><month>03</month><volume>45</volume><issue>1</issue><fpage>7</fpage><lpage>18</lpage><pub-id pub-id-type="doi">10.1111/birt.12316</pub-id><pub-id pub-id-type="medline">29057487</pub-id></nlm-citation></ref><ref id="ref42"><label>42</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Carlsson</surname><given-names>IM</given-names> </name><name name-style="western"><surname>Ziegert</surname><given-names>K</given-names> </name><name name-style="western"><surname>Nissen</surname><given-names>E</given-names> </name></person-group><article-title>The relationship between childbirth self-efficacy and aspects of well-being, birth interventions and birth outcomes</article-title><source>Midwifery</source><year>2015</year><month>10</month><volume>31</volume><issue>10</issue><fpage>1000</fpage><lpage>1007</lpage><pub-id pub-id-type="doi">10.1016/j.midw.2015.05.005</pub-id><pub-id pub-id-type="medline">26094071</pub-id></nlm-citation></ref><ref id="ref43"><label>43</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Klabbers</surname><given-names>GA</given-names> </name><name name-style="western"><surname>Wijma</surname><given-names>K</given-names> </name><name name-style="western"><surname>Paarlberg</surname><given-names>KM</given-names> </name><name name-style="western"><surname>Emons</surname><given-names>WHM</given-names> </name><name name-style="western"><surname>Vingerhoets</surname><given-names>A</given-names> </name></person-group><article-title>Haptotherapy as a new intervention for treating fear of childbirth: a randomized controlled trial</article-title><source>Journal of Psychosomatic Obstetrics &#x0026; Gynecology</source><year>2019</year><month>01</month><day>2</day><volume>40</volume><issue>1</issue><fpage>38</fpage><lpage>47</lpage><pub-id pub-id-type="doi">10.1080/0167482X.2017.1398230</pub-id></nlm-citation></ref><ref id="ref44"><label>44</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Klabbers</surname><given-names>GA</given-names> </name><name name-style="western"><surname>Wijma</surname><given-names>K</given-names> </name><name name-style="western"><surname>Paarlberg</surname><given-names>KM</given-names> </name><name name-style="western"><surname>Emons</surname><given-names>WH</given-names> </name><name name-style="western"><surname>Vingerhoets</surname><given-names>AJ</given-names> </name></person-group><article-title>Treatment of severe fear of childbirth with haptotherapy: design of a multicenter randomized controlled trial</article-title><source>BMC Complement Altern Med</source><year>2014</year><month>10</month><day>8</day><volume>14</volume><fpage>385</fpage><pub-id pub-id-type="doi">10.1186/1472-6882-14-385</pub-id><pub-id pub-id-type="medline">25293834</pub-id></nlm-citation></ref><ref id="ref45"><label>45</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Ngo</surname><given-names>E</given-names> </name><name name-style="western"><surname>Truong</surname><given-names>MBT</given-names> </name><name name-style="western"><surname>Nordeng</surname><given-names>H</given-names> </name></person-group><article-title>Use of decision support tools to empower pregnant women: systematic review</article-title><source>J Med Internet Res</source><year>2020</year><month>09</month><day>14</day><volume>22</volume><issue>9</issue><fpage>e19436</fpage><pub-id pub-id-type="doi">10.2196/19436</pub-id><pub-id pub-id-type="medline">32924961</pub-id></nlm-citation></ref><ref id="ref46"><label>46</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Wallwiener</surname><given-names>S</given-names> </name><name name-style="western"><surname>M&#x00FC;ller</surname><given-names>M</given-names> </name><name name-style="western"><surname>Doster</surname><given-names>A</given-names> </name><etal/></person-group><article-title>Pregnancy eHealth and mHealth: user proportions and characteristics of pregnant women using web-based information sources-a cross-sectional study</article-title><source>Arch Gynecol Obstet</source><year>2016</year><month>11</month><volume>294</volume><issue>5</issue><fpage>937</fpage><lpage>944</lpage><pub-id pub-id-type="doi">10.1007/s00404-016-4093-y</pub-id><pub-id pub-id-type="medline">27084763</pub-id></nlm-citation></ref><ref id="ref47"><label>47</label><nlm-citation citation-type="journal"><person-group person-group-type="author"><name name-style="western"><surname>Sayakhot</surname><given-names>P</given-names> </name><name name-style="western"><surname>Carolan-Olah</surname><given-names>M</given-names> </name></person-group><article-title>Internet use by pregnant women seeking pregnancy-related information: a systematic review</article-title><source>BMC Pregnancy Childbirth</source><year>2016</year><month>03</month><day>28</day><volume>16</volume><fpage>65</fpage><pub-id pub-id-type="doi">10.1186/s12884-016-0856-5</pub-id><pub-id pub-id-type="medline">27021727</pub-id></nlm-citation></ref></ref-list><app-group><supplementary-material id="app1"><label>Checklist 1</label><p>CONSORT-eHealth checklist (V 1.6.2).</p><media xlink:href="jmir_v27i1e72807_app1.pdf" xlink:title="PDF File, 104 KB"/></supplementary-material></app-group></back></article>