Table 1. Basic characteristics of the postmenopausal women in the association study.
| Characteristics | Cases | Controls | p-value* |
|---|---|---|---|
| No. | 405 | 722 | |
| Age (year) | 61.84 ± 4.70 | 56.98 ± 5.47 | < 0.0001 |
| Body mass index (BMI) (kg/m2) | 25.18 ± 3.28 | 24.54 ± 2.93 | 0.0013 |
| Distal radius speed of sound (DR-SOS) (m/s) | 3972 ± 185 | 4224 ± 146 | < 0.0001 |
| Midshaft tibia speed of sound (MT-SOS) (m/s) | 3600 ± 115 | 3920 ± 105 | < 0.0001 |
| DR-SOS T-score | −1.72 ± 1.57 | 0.41 ± 1.21 | < 0.0001 |
| MT-SOS T-score | −3.33 ± 1.11 | −0.26 ± 0.96 | < 0.0001 |
*Significant differences in the characteristics between the controls and cases were determined by the two-tailed Student’s t-test. Abbreviation: p-value, probability value.