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. 2023 Jul 6;7:e47516. doi: 10.2196/47516

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©Kevin A Hallgren, Mark H Duncan, Matthew D Iles-Shih, Eliza B Cohn, Connor J McCabe, Yanni M Chang, Andrew J Saxon. Originally published in JMIR Formative Research (https://formative.jmir.org), 06.07.2023.

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 JMIR Formative Research, is properly cited. The complete bibliographic information, a link to the original publication on https://formative.jmir.org, as well as this copyright and license information must be included.

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Participant flow through screening, enrollment, and receipt of the mobile health (mHealth) intervention. Baseline electronic health record (EHR) data analyses included all participants who consented to take part in the study. Baseline research questionnaire analyses included all participants who consented to take part in the study and completed the baseline research questionnaire. Intervention engagement analyses included all participants who received the intervention. Intervention usability analyses included participants who received the intervention and completed the midintervention usability questionnaire.