| Characteristics | No. (%) |
|---|---|
| Age (years) | |
| 50–54 | 96 (33.1) |
| 55–59 | 119 (41.0) |
| 60–64 | 75 (25.9) |
| Ethnicity | |
| White | 284 (97.9) |
| Asian | 4 (1.4) |
| Hispanic | 1 (0.3) |
| Black | 1 (0.3) |
| Other | |
| Body mass index (kg/m2) | |
| <18.5 | 2 (0.7) |
| 18.5–24.9 | 108 (37.2) |
| 25.0–29.9 | 99 (34.1) |
| ≥30.0 | 81 (27.9) |
| Estrogen use | |
| Ever use | 92 (31.7) |
| Current use | 21 (7.2) |
| Previous fractures (n) | |
| 0 | 262 (90.3) |
| 1 | 25 (8.6) |
| ≥2 | 3 (1.0) |
| History of rheumatoid arthritis | 17 (5.9) |
| Osteoporosis | |
| Femoral neck | 19 (6.6) |
| Lumbar spine | 41 (14.1) |
| Lumbar spine and/or femoral neck | 50 (17.2) |