Table 1.
Baseline characteristic of participants.
| Characteristics 1 | ||
|---|---|---|
| Age, years | 14.67 | 1.73 |
| Gender, n (%) | ||
| Male | 1899 | 52.82 |
| Female | 1696 | 47.18 |
| Adolescents’ educational level, n (%) | ||
| Junior high school | 1632 | 45.40 |
| Senior high school | 1963 | 54.60 |
| Parental education level, n (%) | ||
| Illiterate or primary school | 232 | 6.45 |
| Middle school or high school | 2414 | 67.15 |
| College or above | 949 | 26.40 |
| Monthly household income, RMB | ||
| ≤5000 | 461 | 12.82 |
| 5000–10,000 | 1641 | 45.65 |
| 10,000–20,000 | 865 | 24.06 |
| 20,000–40,000 | 360 | 10.01 |
| ≥40,000 | 268 | 7.46 |
| Perceived health status, n (%) | ||
| Excellent | 467 | 12.99 |
| Very good | 743 | 20.67 |
| Good | 1439 | 40.03 |
| Fair | 850 | 23.64 |
| Poor | 96 | 2.67 |
| Perceived weight status, n (%) | ||
| Very underweight | 146 | 4.06 |
| A little underweight | 511 | 14.21 |
| Just right | 1058 | 29.43 |
| A little overweight | 1458 | 40.56 |
| Very overweight | 422 | 11.74 |
| BMI | 21.12 | 4.65 |
| MVPA per week (minutes) | 751.05 | 187.41 |
1 Values are mean (SD), unless otherwise specified.