Table 1. Descriptive statistics for all continuous and categorical variables.
| Variables | n (%) or M ± SD |
|---|---|
| Age | 18.55 ± 0.83 |
| Gender | |
| Male | 499 (60.6) |
| Female | 324 (39.4) |
| Education level | |
| Vocational education | 648 (78.7) |
| Undergraduate education | 175 (21.3) |
| Only child or not | |
| Yes | 249 (30.3) |
| No | 574 (69.7) |
| Type of residence | |
| Countryside | 460 (55.9) |
| City or town | 363 (44.1) |
| Annual family income | |
| RMB 10,000 to 150,000 | 610 (74.1) |
| RMB 150,001 to 300,000 | 147 (17.9) |
| RMB 300,001 or more | 66 (8.0) |
| IPAQ-SF | |
| Vigorous MET-minutes/week | 1,618.030 ± 2,302.092 |
| Moderate MET-minutes/week | 834.280 ± 1,097.699 |
| Walking MET-minutes/week | 1,389.500 ± 1,709.041 |
| PA | 3,841.810 ± 3,907.981 |
| SAS-SV | |
| PSU | 30.170 ± 9.605 |
| MBI-SS | |
| EX | 10.110 ± 5.742 |
| CY | 6.940 ± 4.773 |
| PE | 20.860 ± 6.957 |
| rPE | 15.140 ± 6.957 |
Notes:
Vigorous MET-minutes/week = 8.0 * vigorous-intensity activity minutes * vigorous-intensity days; Moderate MET-minutes/week = 4.0 * moderate-intensity activity minutes * moderate-intensity days; walking MET-minutes/week = 3.3 * walking minutes * walking days; PA (Total physical activity MET-minutes/week) = sum of walking + moderate + vigorous MET-minutes/week scores.