Table 1.
Baseline characteristics of patients with postmenopausal osteoporosis.
| Characteristic | Postmenopausal Osteoporosis | Normal Postmenopausal Range |
|---|---|---|
| Age in yr (mean, range) | 63 (47–74) | |
| Years since menopause | 16 ± 10 | |
| sPTH (ng/L) | 37 ± 14 | 30 ± 11 |
| sICTP (μg/L) | 3.2 ± 1.1 | 3.2 ± 1.0 |
| sOCN (μg/mL) | 16.6 ± 10.8 | 13.7 ± 7.1 |
| sAP (U/L) | 20 ± 5 | 11 ± 5 |
| Prevalent vertebral compression fractures | ||
| 0/1/ > 1 | 49/4/3 | |
| BMD (g/cm2) | ||
| Lumbar spine, n = 52 | 0.71 ± 0.10 | 0.89 ± 0.11 † |
| Femoral neck, n = 50 | 0.61 ± 0.07 | 0.73 ± 0.10 † |
| pQCT (mg/cm−3), n = 38 | 198 ± 76 | |
| Fmax (N), n = 37 | 67 ± 54 |
n = 56 unless otherwise stated. † Standard hologic QDR1000 reference curves, age 60 yr. S, serum; PTH, parathyroid hormone; ICTP, carboxyterminal telopeptide of type I collagen; OCN, osteocalcin; BMD, bone mineral density; pQCT, apparent trabecular bone volumetric density; Fmax, compressive strength.