Table 1.

Text message type and frequency by treatment group

SMS message type		Targeted	Tailored	Control
Tips related to monitoring		2 texts per week	2 texts per week	2 texts per week
Prompts related to self-monitoring	Query regarding which behaviors were monitored	1 text per week (W, C, P)	2 texts per week (W, C, P)	1 text per week (M, E, B)
	Prompt for data to drive tailored messaging	–	6 texts per week AM reminder (n = 3/week)/ PM prompt for data (n = 3/week)	–
	Feedback on the number of days successfully submitted monitoring data		1 text per week
Tips to address high-risk weight loss behaviors		2 texts per week (general)	2 texts per week (personalized)	2 texts per week (general)
Reminder to review Facebook content		2 texts per week	2 texts per week	2 texts per week

Total number of days per week receiving a text for all groups was 7. The total number of outgoing texts per week was 7 for targeted and control and 15 for tailored.

B, body image; C, calories; E, energy; M, mind; P, physical activity minutes; W, weight.