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. 2021 Feb 26;8(2):e25834. doi: 10.2196/25834

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©Robin Ortiz, Lauren Southwick, Rachelle Schneider, Elissa V Klinger, Arthur Pelullo, Sharath Chandra Guntuku, Raina M Merchant, Anish K Agarwal. Originally published in JMIR Mental Health (http://mental.jmir.org), 26.02.2021.

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 JMIR Mental Health, is properly cited. The complete bibliographic information, a link to the original publication on http://mental.jmir.org/, as well as this copyright and license information must be included.

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Change in mood from week 1 to week 4 of the intervention (δ) for participants varied significantly across mood tiers [H(2)=14.85; P<.001]. Pairwise comparisons revealed significant differences between low and medium mood tiers (P=.004) and between low and high mood tiers (P=.001).