Table 5.

Data collection schedule for SNAP

Measure	Month
	0	4	12	24	36	48
Anthropomorphic
Weight (primary outcome)	X	X	X	X	X	X
Height	X	X	X	X	X	X
Waist circumference	X	X	X	X	X	X
Body composition with impedance	X	X	X	X	X	X
Body composition with BodPod (UNC only)	X	X	X	X	X	X
Behavioral and cognitive
Diet (Food Frequency Questionnaire)	X	X		X
Specific questions about diet	X	X	X	X	X	X
Physical activity: Paffenbarger	X	X	X	X	X	X
Sedentary activity	X	X	X	X	X	X
Objective (arm bands)	X	X	X	X
Weight history	X
Weight management strategies	X	X	X	X	X	X
Self-weighing	X	X	X	X	X	X
Eating disorders assessment	X	X	X	X	X	X
Eating inventory	X	X	X	X	X	X
Autonomous motivation	X	X	X	X	X	X
Smoking, alcohol use	X	X	X	X	X	X
Sleep habits	X	X	X	X	X	X
Neighborhood, environment	X	X	X	X	X	X
Medical
Blood pressure	X	X	X	X	X	X
Fasting lipids, glucose, insulin	X			X
Medication use	X	X	X	X	X	X
Medical events		X	X	X	X	X
DNA, serum, plasma	X			X
Psychological assessments
Depression (CES-D)	X	X	X	X	X	X
Life events	X	X	X	X	X	X
Perceived stress	X	X	X	X	X	X
Quality of life	X	X	X	X	X	X
Other questionnaires
Demographic data	X	X	X	X	X	X
Contact information	X	X	X	X	X	X
Weight status of friends and family	X	X	X	X	X	X
Treatment preference, satisfaction and post-treatment feedback	X	X	X	X	X	X
Adherence (Intervention groups only)
Attendance at adherence sessions		Throughout
Monthly submission of weight data		Throughout