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. 2022 Sep 21;24(9):e40141. doi: 10.2196/40141

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©Han Shi Jocelyn Chew, Wee Ling Koh, Janelle Shaina Hui Yi Ng, Ker Kan Tan. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 21.09.2022.

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.

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An illustration of the summary statistics of the intervention and control groups in each study included in the meta-analysis on the effect of smartphone weight loss apps on weight loss at 3 months. The illustration also shows the subgroup analysis of the studies based on whether the control group received an app-based intervention. MD: mean difference.