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. 2021 Jul 27;7(7):e29060. doi: 10.2196/29060

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©Alain Vandormael, Maya Adam, Merlin Greuel, Jennifer Gates, Caterina Favaretti, Violetta Hachaturyan, Till Bärnighausen. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 27.07.2021.

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 Public Health and Surveillance, is properly cited. The complete bibliographic information, a link to the original publication on https://publichealth.jmir.org, as well as this copyright and license information must be included.

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The prevalence of behavioral intent for each of the five list experiments with 95% CIs. Differences between the CoVideo, attention placebo control (APC), and do-nothing arms are reported with P values. Total effect represents the difference in means between the CoVideo and do-nothing arms, attention effect represents the difference in means between the APC and do-nothing arms, and content effect represents the difference in means between the CoVideo and APC arms.