Prevalence of tweets about Depression.

2016-03-16T00:04:30Z (GMT) by Chao Yang Padmini Srinivasan

X axis day -200 to day +300 around Day 0. Y axis: Prevalence of tweets about Depression calculated using Eqs (1) and (2). The left panel shows trends for S (orange line) and D (blue line) groups while the right panel shows trends for S = >D (orange to blue line) and D = >S (blue to orange) groups.