Overall (N = 4388) | School type | p valuea | |||
---|---|---|---|---|---|
Primary school (n = 1602) | Junior high school (n = 1455) | Senior high school (n = 1331) | |||
Age | |||||
Mean (SDb) | 13.9 (2.5) | 11.2 (0.9) | 14.1 (0.9) | 16.9 (0.9) | |
Gender (%) | |||||
Boys | 50.2 | 53.9 | 50.9 | 45.1 | < 0.001 |
Girls | 49.8 | 46.1 | 49.1 | 54.9 | |
Residence (%) | |||||
Rural | 46.3 | 44.5 | 46.5 | 48.1 | 0.192 |
Suburban | 22.7 | 24.5 | 22.2 | 21.1 | |
Urban | 31.0 | 31.0 | 31.3 | 30.8 | |
Self-rated academic performance (%)c | |||||
Poor | 20.6 | 16.5 | 25.1 | 20.7 | |
Fair | 34.6 | 30.9 | 32.1 | 41.7 | < 0.001 |
Good | 44.8 | 52.6 | 42.8 | 37.6 | |
Self-assessed general health statusd | |||||
Poor | 3.9 | 2.7 | 3.5 | 5.6 | |
Fair | 35.7 | 25.7 | 36.0 | 47.3 | < 0.001 |
Good | 60.5 | 71.5 | 60.5 | 47.1 | |
Body weight status (%) | |||||
Non-overweight | 72.3 | 67.8 | 73.4 | 76.6 | |
Overweight | 16.7 | 17.8 | 16.9 | 15.2 | < 0.001 |
Obesity | 11.0 | 14.4 | 9.7 | 8.2 | |
Physical activity (%)e | |||||
Sufficient | 20.0 | 23.0 | 19.0 | 17.5 | < 0.001 |
Insufficient | 80.0 | 77.0 | 81.0 | 82.5 | |
Screen time (%) | |||||
< 2 h/day | 96.3 | 96.8 | 95.3 | 96.7 | 0.060 |
≥ 2 h/day | 3.7 | 3.2 | 4.7 | 3.3 | |
Parental educational attainment | |||||
< 9 years | 38.9 | 47.2 | 26.7 | 42.4 | |
10–13 years | 32.2 | 27.0 | 37.9 | 32.3 | < 0.001 |
≥ 13 years | 28.8 | 25.8 | 35.4 | 25.2 |