Table 1.
Sample Characteristics (n = 499).
| mean (sd)/n (%) | β | p-value | |
|---|---|---|---|
| Age | 52.8 (2.9) | -0.01 | 0.42 |
| Weight (kg) | 57.3 (7.8) | 0.05 | <0.001 |
| Height (cm) | 157.9 (5.1) | 0.05 | <0.001 |
| BMI (kg/m2) | 23.0 (2.9) | 0.11 | <0.001 |
| Family Income (Yuan) | |||
| <60,000 | 129 (25.8%) | 0.10 | 0.07 |
| 60,000 – 120,000 | 217 (43.5%) | ||
| >120,000 | 153 (30.7%) | ||
| Exercise (times/week) | 0.81 (0.8) | 0.13 | 0.02 |
| Years Since Menopause | 2.0 (1.0) | -0.13 | 0.003 |
| Follicle Stimulating Hormone (mIU/ml) | 76.2 (32.2) | -0.01 | <0.001 |
| Estradiol | |||
| Low (<18.35 pmol/L) | 308 (61.7%) | 0.24 | 0.008 |
| High | 191 (38.3%) | ||
| Calcium Supplementation | |||
| Never | 289 (57.9%) | -0.01 | 0.83 |
| Sometimes | 137 (27.5%) | ||
| Often | 73 (14.6%) | ||
| Alcohol | |||
| Sometimes Never |
143 (28.7%) 355 (71.1%) |
0.02 | 0.81 |
| Smoking | |||
| Sometimes | 0 (0.0%) | – | – |
| Never | 499 (100.0%) | ||
| Femoral Neck BMD (g/cm2) | 0.86 (0.12) | – | – |
Means and standard deviations are provided for continuous variables. Number of subjects and percentages are provided for categorical variables. β and p-value provide the bivariate associations between each variable and BMD based on linear regression.