Table 2 Impact evaluation measures for the OPREVENT2 trial by intervention level

Policy

# CAC action items achieved/year

# health-related issues put on tribal policymaker’s agenda/year

Increase in CAC participant collective efficacy scores

Schools

# policy changes made to improve the school food and PA environments

# structural changes made to improve the school food and PA environments (e.g., removal of vending machines)

Food Stores

# units of promoted foods sold

# units of promoted foods purchased/consumed by OPREVENT2 participants

Worksites

# policy changes made to improve the workplace food and PA environments

# structural changes made to improve the workplace food and PA environments (e.g., changing what’s in vending machines)

Adult/household

Household food purchasing (healthy and unhealthy foods)

Healthiness of common methods of food preparation

Change in psychosocial factors (knowledge, self-efficacy, intentions)

Change in dietary patterns (e.g., total calories, total fat, FV servings, HEI scores, etc.)

Change in PA (IPAQ, FitBit)

Change in weight, BMI, blood pressure, waist and hip circumference