Table 1 Baseline characteristics.
Study group | Historical control | P value | |
|---|---|---|---|
N = 2239 | N = 3137 | ||
University | |||
Zhuzhou | 1785 (79.7%) | 2436 (77.7%) | 0.07 |
Jinhua | 454 | 701 | |
Sex | 0.002 | ||
Female | 1910 (85.3%) | 2577 (82.1%) | |
Location | |||
Urban | 1378 (61.5%) | 2024 (64.5%) | 0.03 |
Rural | 861 | 1113 | |
Regional disposable income (per capita) | 28,646 (13,714) | 29,162(14,009) | 0.18 |
Age | 18 (1) | 18 (1) | 0.26 |
Height (cm) | 161 (7) | 162 (7) | 0.24 |
Weight (kg) | 53.8 (9.1) | 54.2 (9.5) | 0.18 |
BMI (kg/m2) | 20.6 (3) | 20.7 (3) | 0.45 |
Vital capacity (ml) | 2911 (623) | 3059 (661) | < 0.001 |
50 m run (s) | 8.96 (0.89) | 8.98 (0.93) | 0.26 |
Anaerobic fitness | 71 (10) | 70 (10) | 0.001 |
Standing long jump (cm) | 176.5 (25.1) | 176 (25.8) | 0.46 |
Explosive fitness | 69 (14) | 66 (16) | < 0.001 |
Sit and reach test (cm) | 16.44 (5.51) | 16.07 (6.09) | 0.02 |
Flexibility | 76 (12) | 75 (15) | 0.001 |
Male | N = 329 | N = 560 | |
1000 m run (s) | 247.79 (24.15) | 251.06 (32.45) | 0.09 |
Aerobic fitness | 63 (13) | 61 (16) | 0.06 |
One-minute pull-ups | 9.00 (5.38) | 8.26 (5.68) | 0.33 |
Muscular strength | 46 (33) | 43 (34) | 0.15 |
Female | N = 1910 | N = 2577 | |
800 m run (s) | 239.69 (19.18) | 237.36 (24.39) | < 0.001 |
Aerobic fitness | 67 (12) | 67 (15) | 0.20 |
One-minute sit-ups | 33.62 (7.52) | 31.72 (8.82) | < 0.001 |
Muscular strength | 66 (13) | 61 (18) | < 0.001 |
Total score | 69 (8) | 67 (10) | < 0.001 |
