Table 1.
Baseline characteristics of subjects.
| Male | Female | P value | |
|---|---|---|---|
| No. of subjects | 786 | 825 | |
| Age (years) | 32.5 ± 5.5 | 30.7 ± 6.1 | <0.001 |
| Weight (kg) | 63.9 ± 12.4 | 51.0 ± 9.0 | <0.001 |
| Height (cm) | 168.8 ± 5.8 | 158.0 ± 5.0 | <0.001 |
| BMI (kg/m2) | 22.4 ± 3.9 | 20.4 ± 3.2 | <0.001 |
| Body composition measures | |||
| Whole-body LM (kg) | 47.6 ± 6.0 | 33.0 ± 4.1 | <0.001 |
| LMI (kg/m2) | 16.7 ± 1.7 | 13.2 ± 1.4 | <0.001 |
| Whole-body FM (kg) | 13.7 ± 7.6 | 15.8 ± 6.1 | <0.001 |
| FMI (kg/m2) | 4.8 ± 2.6 | 6.3 ± 2.3 | <0.001 |
| Fat% | 20.2 ± 8.3 | 30.2 ± 6.8 | <0.001 |
| A/G FMR | 0.57 ± 0.17 | 0.40 ± 0.10 | <0.001 |
| Trunk/legs FMR | 1.99 ± 0.62 | 1.43 ± 0.33 | <0.001 |
| Bone mineral density (g/cm2) | |||
| Whole body | 1.105 ± 0.109 | 1.068 ± 0.918 | <0.001 |
| Lumbar spine | 1.114 ± 0.162 | 1.118 ± 0.145 | 0.588 |
| Femoral neck | 0.921 ± 0.140 | 0.905 ± 0.123 | 0.019 |
| Total hip | 0.941 ± 0.150 | 0.928 ± 0.131 | 0.078 |
| Current smoker (%) | 18% | 4% | <0.001 |
| Current alcohol user (%) | 15% | 3% | <0.001 |
Note: values are presented as number, mean ± standard deviation, or percentage. LM: lean mass; LMI: lean mass index; FM: fat mass; FMI: fat mass index; Fat%: percentage of body fat mass; A/G FMR: android to gynoid fat mass ratio. P value was determined by the unpaired-sample t-tests or chi-squared test.