Published on in Vol 6, No 12 (2022): December
![Using Twitter Data to Estimate the Prevalence of Symptoms of Mental Disorders in the United States During the COVID-19 Pandemic: Ecological Cohort Study Using Twitter Data to Estimate the Prevalence of Symptoms of Mental Disorders in the United States During the COVID-19 Pandemic: Ecological Cohort Study](https://asset.jmir.pub/assets/d06ac7bf3e6f547ff190d933c0ec1a9b.png 480w,https://asset.jmir.pub/assets/d06ac7bf3e6f547ff190d933c0ec1a9b.png 960w,https://asset.jmir.pub/assets/d06ac7bf3e6f547ff190d933c0ec1a9b.png 1920w,https://asset.jmir.pub/assets/d06ac7bf3e6f547ff190d933c0ec1a9b.png 2500w)
1 Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
2 South Carolina SmartState Center for Healthcare Quality, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
3 University of South Carolina Big Data Health Science Center, Columbia, SC, United States
4 Geoinformation and Big Data Research Lab, Department of Geography, University of South Carolina, Columbia, SC, United States
5 Department of Health Promotion, Education and Behavior, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States