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Table 1 Food items purchased per week assessed in the Child Impact Questionnaire and construction of the food purchasing variety variables

From: A multilevel, multicomponent childhood obesity prevention group-randomized controlled trial improves healthier food purchasing and reduces sweet-snack consumption among low-income African-American youth

Healthier foods items (n = 38) 1% or skim milk, diet soda, water, 100% fruit juice, sugar free drinks, fruit flavored water, unsweetened tea, fresh fruits such as apples, oranges, bananas, frozen and canned fruit, fresh, frozen, and canned vegetables, canned tuna in water, low sugar/high fiber cereals, 100% whole wheat bread, hot cereal, pretzels, baked chips, reduced-fat chips, dried fruit, nuts or seeds, cooking spray, grilled chicken, grilled seafood, fruit and vegetable as side dishes, deli sandwich, tacos, yogurt, granola Healthier food purchasing variety (observed) a
Maximum score: 34
Minimum score: 0
Mean: 2.6
Standard deviation: 3.6
Cronbach’s alpha: 0.87
Unhealthier foods items (n = 28) whole milk, 2% milk, regular soda or regular energy drinks, fruit drinks, sweetened iced tea, sports drinks, applesauce, sugary cereals, white bread or split top wheat, burger, pizza, fried chicken, fried seafood, fries, fried chicken sandwich, carryout-Chinese food, chips, baked goods (cookies, cakes, poptarts), chocolate candy, ice cream, juice popsicles, snow cones, other candies. Unhealthier food purchasing variety (observed) a
Maximum score: 19
Minimum score: 0
Mean: 4.6
Standard deviation: 3.7
Cronbach’s alpha: 0.80
  1. aFor the construction of the food purchasing variable referring to the number of different items purchased per week, we first assigned one point to each food/beverage item the youth reported purchasing in the past 7 days, or 0 if they did not purchase that item. Then, we summed all the items belonging to “healthier foods” to derive the healthier food purchasing variety variable, and separately summed those under “unhealthier items” to derive the unhealthier food purchasing variety variable. Maximum, minimum, means, and standard deviations are reported based on the baseline number of different items purchased per week observed among children in BHCK. Underline text represents the name of the variable constructed