Published on in Vol 25 (2023)

This is a member publication of University of Toronto

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/55010, first published .
Figure Correction: Using Social Media to Help Understand Patient-Reported Health Outcomes of Post–COVID-19 Condition: Natural Language Processing Approach

Figure Correction: Using Social Media to Help Understand Patient-Reported Health Outcomes of Post–COVID-19 Condition: Natural Language Processing Approach

Figure Correction: Using Social Media to Help Understand Patient-Reported Health Outcomes of Post–COVID-19 Condition: Natural Language Processing Approach

Corrigenda and Addenda

1Faculty of Health, School of Health Policy and Management, York University, Toronto, ON, Canada

2Vector Institute, Toronto, ON, Canada

3Department of Medicine and Joint Department of Medical Imaging, University of Toronto, Toronto, ON, Canada

4Hoffmann-La Roche Ltd, Toronto, ON, Canada

5Electrical and Computer Engineering, Queen’s University, Kingston, ON, Canada

6Manulife, Toronto, ON, Canada

7Deloitte, Toronto, ON, Canada

8TELUS Health, Montreal, QC, Canada

9Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada

10Roche Information Solutions, San Francisco, CA, United States

11Hoffmann-La Roche Ltd, Munich, Germany

12University Health Network, Toronto, ON, Canada

Corresponding Author:

Elham Dolatabadi, BSc, MSc, PhD

Faculty of Health, School of Health Policy and Management

York University

4700 Keele Street

North York

Toronto, ON, M3J 1P3

Canada

Phone: 1 6477069756

Email: edolatab@yorku.ca



In “Using Social Media to Help Understand Patient-Reported Health Outcomes of Post–COVID-19 Condition: Natural Language Processing Approach” (J Med Internet Res 2023;25:e45767) the authors noted two errors in Figure presentations of Twitter data.

In the originally published article, in Figure 2B the presentation of the occurrence frequency of Grouped terms on Twitter (the left subplot) appeared incorrectly. This subplot has been corrected and the accurate presentation of the occurrence frequency of Grouped terms on Twitter has been shown.

In the originally published article, in Figure 3A the presentation of the occurrence frequency of Mapped terms on Twitter (the lower left heatmap plot) appeared incorrectly. This heatmap plot has been corrected and the accurate presentation of the co-occurrence frequency of Mapped terms on Twitter has been shown.

The originally published versions of Figures 2 and 3 are included in Multimedia Appendix 1.

Figure 2. The occurrence frequency of the most prevailing extracted symptom and condition terms in Twitter and Reddit data with occurrence frequency greater than 1% (n>350 for Twitter, and n>4000 for Reddit). Normalized terms are the raw terms that were normalized (after a 2-step normalization process, as shown in Figure 1) to the 203 standardized unique concepts derived from a web-based survey of 3762 patients with post–COVID-19 condition [3]. For instance, “my tiredness” is normalized into “fatigue.” Grouped terms are the normalized terms that were further categorized based on the affected organ system established by Davis et al [3]. Novel terms are the mapped terms that we had not normalized to the 203 standardized unique concepts because they were neither reported nor categorized in the survey study [3]. HEENT: head, eyes, ears, nose, and throat.
Figure 3. Co-occurrence frequency of normalized post–COVID-19 condition terms in Twitter (A) which is higher than 50% and Reddit (B) which is higher than 10% data. Higher values are shown by the intensity of pink and blue shading. Normalized terms are the raw terms that were normalized (after a 2-step normalization process, as shown in Figure 1) to the 203 standardized unique concepts derived from a web-based survey of 3762 patients with post–COVID-19 condition [3]. For instance, “my tiredness” is normalized into “fatigue”. Please see Multimedia Appendix 2 for a larger version.

The correction will appear in the online version of the paper on the JMIR Publications website on December 8, 2023 together with the publication of this correction notice. Because this was made after submission to PubMed, PubMed Central, and other full-text repositories, the corrected article has also been resubmitted to those repositories.

Multimedia Appendix 1

Originally published Figures 2 and 3.

DOCX File , 2363 KB

Multimedia Appendix 2

Co-occurrence frequency of normalized post–COVID-19 condition terms in Twitter (A) which is higher than 50% and Reddit (B) which is higher than 10% data. Higher values are shown by the intensity of pink and blue shading. Normalized terms are the raw terms that were normalized (after a 2-step normalization process, as shown in Figure 1) to the 203 standardized unique concepts derived from a web-based survey of 3762 patients with post–COVID-19 condition [3]. For instance, “my tiredness” is normalized into “fatigue”.

PNG File , 3742 KB

This is a non–peer-reviewed article. submitted 04.12.23; accepted 05.12.23; published 08.12.23.

Copyright

©Elham Dolatabadi, Diana Moyano, Michael Bales, Sofija Spasojevic, Rohan Bhambhoria, Junaid Bhatti, Shyamolima Debnath, Nicholas Hoell, Xin Li, Celine Leng, Sasha Nanda, Jad Saab, Esmat Sahak, Fanny Sie, Sara Uppal, Nirma Khatri Vadlamudi, Antoaneta Vladimirova, Artur Yakimovich, Xiaoxue Yang, Sedef Akinli Kocak, Angela M Cheung. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 08.12.2023.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), 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 https://www.jmir.org/, as well as this copyright and license information must be included.