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Differences in Use of a Patient Portal Across Sociodemographic Groups: Observational Study of the NHS App in England

Sukriti KC, Chrysanthi Papoutsi, Claire Reidy, Bernard Gudgin, John Powell, Azeem Majeed, Felix Greaves, Anthony A Laverty

J Med Internet Res 2024;26:e56320

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Digital Health Technology for Real-World Clinical Outcome Measurement Using Patient-Generated Data: Systematic Scoping Review

Evelyn Pyper, Sarah McKeown, Jamie Hartmann-Boyce, John Powell

J Med Internet Res 2023;25:e46992

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The Mobile Health App Trustworthiness Checklist: Usability Assessment

Afua van Haasteren, Effy Vayena, John Powell

JMIR Mhealth Uhealth 2020;8(7):e16844

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Effectiveness and Cost-Effectiveness of a Self-Guided Internet Intervention for Social Anxiety Symptoms in a General Population Sample: Randomized Controlled Trial

John Powell, Veronika Williams, Helen Atherton, Kylie Bennett, Yaling Yang, Mina Davoudianfar, Annika Hellsing, Angela Martin, Jill Mollison, Milensu Shanyinde, Ly-Mee Yu, Kathleen M Griffiths

J Med Internet Res 2020;22(1):e16804

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Trust Me, I’m a Chatbot: How Artificial Intelligence in Health Care Fails the Turing Test

John Powell

J Med Internet Res 2019;21(10):e16222

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Characterizing the Digital Health Citizen: Mixed-Methods Study Deriving a New Typology

John Powell, Ulrike Deetjen

J Med Internet Res 2019;21(3):e11279

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Implementing an Open Source Electronic Health Record System in Kenyan Health Care Facilities: Case Study

Naomi Muinga, Steve Magare, Jonathan Monda, Onesmus Kamau, Stuart Houston, Hamish Fraser, John Powell, Mike English, Chris Paton

JMIR Med Inform 2018;6(2):e22

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The Role of Social Network Technologies in Online Health Promotion: A Narrative Review of Theoretical and Empirical Factors Influencing Intervention Effectiveness

Panos Balatsoukas, Catriona M Kennedy, Iain Buchan, John Powell, John Ainsworth

J Med Internet Res 2015;17(6):e141

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A Web-Based Program Improves Physical Activity Outcomes in a Primary Care Angina Population: Randomized Controlled Trial

Reena Devi, John Powell, Sally Singh

J Med Internet Res 2014;16(9):e186

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Effectiveness of a Web-Based Cognitive-Behavioral Tool to Improve Mental Well-Being in the General Population: Randomized Controlled Trial

John Powell, Thomas Hamborg, Nigel Stallard, Amanda Burls, Jaime McSorley, Kylie Bennett, Kathleen M Griffiths, Helen Christensen

J Med Internet Res 2013;15(1):e2

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