Table 1 Descriptive characteristics of participants (n=507)
Variable | Mean±s.d. or n (%) |
|---|---|
Age (years) | 10.0±0.4 |
Sex | |
Boys | 209 (41.2) |
Girls | 298 (58.8) |
Ethnicity | |
White/Caucasian | 335 (66.8) |
African-American | 12 (2.4) |
Asian | 50 (10.0) |
First nations | 2 (0.4) |
East Indian | 4 (0.8) |
Don’t know | 1 (0.2) |
Other | 97 (19.4) |
Body mass index (kg m−2) | 18.3±3.4 |
Fat mass (%) | 20.6±7.5 |
Waist circumference (cm) | 63.1±8.6 |
Waist-to-height ratio | 0.44±0.05 |
Moderate-to-vigorous physical activity (min per day) | 58.5±19.4 |
Total sedentary time (min per day) | 512.8±61.4 |
Self-reported screen time (h per day) | 2.8±1.8 |
Sleep duration (min per day) | 544.4±50.7 |
