. 2021 Jan 20;23(1):e24773. doi: 10.2196/24773
©Chathurangi H Pathiravasan, Yuankai Zhang, Ludovic Trinquart, Emelia J Benjamin, Belinda Borrelli, David D McManus, Vik Kheterpal, Honghuang Lin, Mayank Sardana, Michael M Hammond, Nicole L Spartano, Amy L Dunn, Eric Schramm, Christopher Nowak, Emily S Manders, Hongshan Liu, Jelena Kornej, Chunyu Liu, Joanne M Murabito. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.01.2021.
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 the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.
Figure 1.
The time window approach for separating baseline and other follow-up surveys (here, completing a survey means completing 75% of questions in the given survey).