Table 1 Physical characteristics of study participants and physical activity in daily school day by gender
Variables | Boys (n=230) | Girls (n=252) | Mean difference | 95%CI | P-value | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Average | SD | Average | SD | (Boys-Girls) | ||||||
Age (years) | 9.4 | ± | 1.6 | 9.3 | ± | 1.6 | 0.0 | -0.2 | 0.3 | 0.813 |
Height (cm) | 132.5 | ± | 9.9 | 132.3 | ± | 11.1 | 0.1 | -1.8 | 2.0 | 0.902 |
Weight (kg) | 29.8 | ± | 7.7 | 28.7 | ± | 7.1 | 1.1 | -0.2 | 2.4 | 0.115 |
Body mass index (kg/m2) | 16.7 | ± | 2.5 | 16.1 | ± | 1.9 | 0.6 | 0.2 | 1.0 | 0.006 |
Relative body weight (%) | -1.3 | ± | 13.4 | -3.5 | ± | 10.7 | 2.2 | 0.1 | 4.4 | 0.043 |
Weight status (overweight and obese: %) | 7.4 | 2.8 | ||||||||
Moderate-to-vigorous physical activity in daily school day (min/day) | 81 | ± | 22 | 62 | ± | 18 | 18.4 | 15 | 22 | <0.001 |