Table 1 Characteristics of NBS and LBS individuals
Variables | Total | NBS | LBS | Test statistic | p value |
|---|---|---|---|---|---|
No. | 19,845 | 11,300 (56.94%) | 8545 (43.06%) | ||
Region | |||||
Hangzhou | 17,279 | 9797 | 7482 | 321.24 | < 0.01 |
Huzhou | 26 | 8 | 18 | ||
Jiaxing | 1853 | 1275 | 578 | ||
Ningbo | 32 | 26 | 6 | ||
Wenzhou | 655 | 194 | 461 | ||
Sex | |||||
Male | 5834 | 4613 | 1221 | 1650.48 | < 0.05 |
Female | 14,011 | 6687 | 7324 | ||
Age, years | 57.96 ± 14.12 | 52.86 ± 13.94 | 63.71 ± 11.23 | −64.34 | < 0.01 |
< 24 | 247 | 182 | 65 | 3080.76 | < 0.05 |
25–45 | 3471 | 3151 | 320 | ||
46–64 | 9381 | 5623 | 3758 | ||
65–80 | 6040 | 2179 | 3861 | ||
> 80 | 706 | 165 | 541 | ||
Weight, kg | 59.63 ± 9.81 | 60.83 ± 9.58 | 58.05 ± 9.87 | 19.95 | < 0.01 |
Height, cm | 160.11 ± 7.26 | 162.02 ± 6.94 | 157.58 ± 6.90 | 44.71 | < 0.01 |
BMI, kg/m2 | 23.20 ± 3.14 | 23.12 ± 2.99 | 23.31 ± 3.31 | −4.39 | < 0.01 |
< 18.5 | 1026 | 510 | 516 | 92.03 | < 0.01 |
18.5– 24.9 | 13,367 | 7879 | 5488 | ||
25.0–27.9 | 3993 | 2202 | 1791 | ||
28.0–31.9 | 1304 | 641 | 663 | ||
> 32.0 | 155 | 68 | 87 | ||
SOS, m/s | 4011.11 ± 258.76 | 4207.27 ± 127.54 | 3751.70 ± 125.74 | 250.67 | < 0.05 |
T scores | −1.42 ± 2.32 | 0.35 ± 1.10 | −3.76 ± 1.11 | 258.69 | < 0.01 |
Z scores | −0.165 ± 1.91 | 1.10 ± 1.26 | −1.84 ± 1.23 | 165.00 | < 0.01 |