Table 1. Baseline Characteristics of the Study Population.
| Variable | Postmenopausal women (n=246) |
|---|---|
| Age, yr | 62.7±6.2 |
| Height, cm | 155.4±5.2 |
| Weight, kg | 57.0±7.0 |
| Body mass index, kg/m2 | 23.6±2.9 |
| Current smoker | 7 (2.8) |
| Alcohol intake (≥3 U/day) | 37 (15.0) |
| Exercise (≥30 min/day) | 94 (38.2) |
| Parental history of OF | 37 (15.0) |
| Years since menopause, yr | 12.1±6.8 |
| MIF, ng/mL | 25.0±20.4 |
| Bone mineral density, g/cm2 | |
| Lumbar spine | 0.894±0.123 |
| Femoral neck | 0.756±0.094 |
| Total femur | 0.813±0.097 |
| Corrected calcium level, mg/dLa | 8.9±0.4 |
| Phosphorus, mg/dL | 3.8±0.5 |
| Bone turnover marker | |
| Osteocalcin, ng/mL | 30.5±14.3 |
| CTX, ng/mL | 0.560±0.223 |
| 25-OH-D3, ng/mL | 30.5±15.5 |
Values are expressed as mean±SD or number (%).
OF, osteoporotic fracture; MIF, macrophage migration inhibitory factor; CTX, C-terminal telopeptide of type I collagen; 25-OH-D3, 25-hydroxyvitamin D3.
aCorrected calcium level (mg/dL)=total calcium level (mg/dL)+0.8×[4.0 g/dL–serum albumin level (g/dL)] (mg/dL).