Descriptive characteristics of all participants (n = 5,844).

§Number (%) of sample who had at least one parent complete more than at least high school education (i.e., at least some college/university).*Number (%) with WHO BMI z-score classification overweight or obeseƗSites where boys had significantly higher values than girls (p¥ST score = [(hours of TV on weekdays x 5) + (hours of TV on weekend days x 2) + (hours of video games and computers on weekdays x 5) + (hours of video games and computers on weekend days x 2)]/7ǂNumber (%) of children not meeting guidelines for ≤2 hours of screen time/day, in all sites, girls were significantly more likely to meet guidelines than boys (pBMI: Body Mass Index; SED: sedentary time; SD: standard deviation; ST: screen time; UK: United Kingdom; US: United States; OW/OB: overweight/obese.Descriptive characteristics of all participants (n = 5,844).