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Table 5 Data collection schedule for SNAP

From: Weight gain prevention in young adults: design of the study of novel approaches to weight gain prevention (SNAP) randomized controlled trial

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