Table 2.

Intervention and sample characteristics, weight loss, and engagement

Characteristics	Study 1 (n=10)	Study 2 (n=11)	Study 3 (n=12)
Intervention	12 group visits + Twitter	12 group visits + Twitter	1 group visit + Twitter
Length	12 weeks	12 weeks	12 weeks
Depression status	Depressed	Nondepressed	Nondepressed
Social media inclusion criteria	None required, not an active Twitter user	Daily Facebook use required, not an active Twitter user	Daily Facebook use required, not an active Twitter user
Technology inclusion criteria	Internet access at home	Internet access at home	Internet access at home, has a mobile phone
Weight change (lbs), mean (SD)	-2.3 (7.7)	-5.6 (6.3)	-5.4 (6.4)
Weight change (%), mean (SD)	1.2 (3.6)	3.0 (3.4)	3.0 (3.1)
≥5% weight loss, n (%)	2 (20)	4 (36)	5 (42)
Tweets, mean (SD)	110.8 (112.4)	121.9 (127.1)	130.3 (124.1)