Table 1 Descriptive statistics of the study sample, by sex
N = 4637 | Boys | Girls | |||
|---|---|---|---|---|---|
2121 | 2516 | ||||
Mean | SD | Mean | SD | p-value | |
Age (years) | 11.6 | 0.73 | 11.6 | 0.73 | 0.089 |
Sugared drinks (liters/day) | 0.63 | 0.63 | 0.52 | 0.58 | <0.001 |
Breakfast (days/week) | 6.02 | 1.80 | 5.95 | 1.81 | 0.179 |
Active transportation (min/week) | 53.55 | 54.85 | 54.95 | 58.61 | 0.408 |
Sports participation (hours/week) | 4.23 | 2.77 | 3.30 | 2.62 | <0.001 |
TV viewing (hours/week) | 13.43 | 6.93 | 12.49 | 6.83 | <0.001 |
Computer use (hours/week) | 10.52 | 7.06 | 7.71 | 6.16 | <0.001 |
Sleep duration (hours/day) | 9.05 | 0.86 | 9.07 | 0.89 | 0.388 |
n | % | n | % | p-value | |
High parental education (n [%]) | 1449 | 68.3 | 1690 | 67.2 | 0.698 |
Normalweight (n [%]) | 1548 | 73.0 | 1975 | 78.5 | <0.001 |
Overweight (n [%]) | 466 | 22.0 | 441 | 17.5 | <0.001 |
Obese (n [%]) | 107 | 5.0 | 100 | 4.0 | 0.092 |