Table 2.

Data set description.

Descriptive item	User group
	Anorexia nervosa	Treatment	Recovered	Focused control	Random control
Users (n=694), n (%)	171 (24.6)	27 (3.9)	18 (2.6)	271 (39)	207 (29.8)
Tweets collected (n=2,133,110), n (%)	434,615 (20.4)	8317 (0.4)	52,578 (2.5)	1,109,861 (52)	447,739 (21)
Number of tweets collected per user (n=2,133,110), median	1239	1748	2036.5	2608	873
Tweet length (number of words; n=2,133,110), median	14.00	14.00	13.50	12.50	19.00
Images (n=405,909), n (%)	40,142 (9.9)	6584 (1.6)	4202 (1)	298,488 (73.5)	56,493 (13.9)