. 2020 Jan 29;22(1):e16713. doi: 10.2196/16713
©Xin Yang, Jason Parton, Dwight Lewis, Ning Yang, Matthew Hudnall. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 29.01.2020.
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.
Equations for logistic regression models, slope, and change of point for time trends.