Published on in Vol 7, No 3 (2021): March
![Predicting Age Groups of Reddit Users Based on Posting Behavior and Metadata: Classification Model Development and Validation Predicting Age Groups of Reddit Users Based on Posting Behavior and Metadata: Classification Model Development and Validation](https://asset.jmir.pub/assets/a27d1308ae7ca5693ac75cca85724523.png 480w,https://asset.jmir.pub/assets/a27d1308ae7ca5693ac75cca85724523.png 960w,https://asset.jmir.pub/assets/a27d1308ae7ca5693ac75cca85724523.png 1920w,https://asset.jmir.pub/assets/a27d1308ae7ca5693ac75cca85724523.png 2500w)
1 Center for Data Science, RTI International, Research Triangle Park, NC, United States
2 Center for Health Analytics, Media, and Policy, RTI International, Atlanta, GA, United States
3 Center for Health Analytics, Media, and Policy, RTI International, Berkeley, CA, United States
4 Center for Health Analytics, Media, and Policy, RTI International, Research Triangle Park, NC, United States
5 Office of Health Communications and Education, Center for Tobacco Products, US Food and Drug Administration, Silver Spring, MD, United States