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Published on 27.10.16 in Vol 18, No 10 (2016): October

This paper is in the following e-collection/theme issue:

    Corrigenda and Addenda

    Correction of: Exploring Concordance of Patient-Reported Information on PatientsLikeMe and Medical Claims Data at the Patient Level

    1PatientsLikeMe, Cambridge, MA, United States

    2Genentech, Medical Affairs, South San Francisco, CA, United States

    Corresponding Author:

    Paul Wicks, PhD

    PatientsLikeMe

    160 Second Street

    Cambridge, MA,

    United States

    Phone: 1 6173144352

    Fax:1 8668506240

    Email: pwicks@patientslikeme.com



    The authors of, “Exploring Concordance of Patient-Reported Information on PatientsLikeMe and Medical Claims Data at the Patient Level” (J Med Internet Res 2016;18(5):e110) would like to make changes in the fourth paragraph under the heading of Principal Findings in the Discussion section of the paper.  

    The text should read, “A larger percentage of diagnosis-unmatched patients reported having Primary Progressive MS, than those who did have a matching diagnosis (15% vs 4%, respectively).” instead of “A larger percentage of diagnosis-unmatched patients reported having primary progressive MS than those who did have a matching diagnosis (15% vs 3%, respectively).”

    The second correction is in Table 1. There were missing cells that lead to the absence of a key MS subgroup, relapsing-remitting MS, with knock-on consequences for other cells in that table.

    1. The value of “Age in years (SD)” was changed in the column “Consenting patients with claims match” from 47.4 (10.63) to 57.4 (10.63).

    2. The value of “PLM patients with MS as primary or secondary condition (%)” was changed in the column “Consenting patients with claims match” from 391 (69.2) to 392 (69.4).

    3. The row “Relapsing-remitting” was added under “MS subtype.” The values, 2,429 (61.1), 2,165 (60.8), 250 (63.8), and 14 (66.7) were added for columns “Patients invited (N=5,362),” “Patients who did not consent (N=4,759),” “Consenting patients with claims match (N=565),” and “Consenting patients with no claims match (N=36),” respectively.

    4. The values for the row “Primary progressive” under “MS subtype” were changed from 2682 (67.5), 2392 (65.5), 275 (70.3), and 15 (71.4) to 253 (6.4), 227 (6.4), 25 (6.4), and 1 (4.76) in each column, respectively.

    5. The values for the row “Unreported” under the “MS subtype” were changed from 676 (18.5) and 28 (7.2) to 586 (16.5) and 29 (7.4) under columns “Patients who did not consent (N=4,759)” and “Consenting patients with claims match (N=565),” respectively.

    6. The percentages have also been adjusted in the “Reported MS DMT use in PML” category from 3118 (58.2), 2751 (57.8), 351 (62.1), and 16 (44.4) to 3,118 (78.4), 2,751 (77.2), 351 (90.0), and 16 (76.2) in each column, respectively.

    The corrected Table 1 is as below:

    Table 1. Demographic characteristics.
    View this table

    Both these alterations have been made in the online version of the paper on the JMIR website on October 27, 2016 together with publishing this correction notice. Because these were made after submission to PubMed and other full-text repositories, the correction notice has been submitted to PubMed, and the original paper has been resubmitted to PubMed Central. The corrected metadata have also been resubmitted to CrossRef.

    Edited by G Eysenbach; This is a non–peer-reviewed article. submitted 06.10.16; accepted 06.10.16; published 27.10.16

    ©Gabriel S Eichler, Elisenda Cochin, Jian Han, Sylvia Hu, Timothy E Vaughan, Paul Wicks, Charles Barr, Jenny Devenport. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 27.10.2016.

    This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.