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Table 2 Description of the study population at baseline (1992–1994) discrete variables (n = 759)
| Variable | Risk factor present | Percentage |
|---|---|---|
| Osteoporosis (T < -2.5) | 155 | 20.4 |
| Osteopenia (-2.5 ≥ T < -1.0)) | 306 | 40.3 |
| Normal BMD (T ≥ -1.0) | 298 | 39.3 |
| Fracture history after menopause | 130 | 17.1 |
| Use of birth control pill >5 years | 132 | 17.4 |
| Use of hormones >5 years | 48 | 6.3 |
| Ovariectomy | 116 | 15.3 |
| Hysterectomy | 287 | 37.8 |
| Menopause before the age of 45 | 255 | 33.6 |
| Perimenopausal complaints | 226 | 29.8 |
| Family history of osteoporosis | 96 | 12.6 |
| Coffee intake ≥ 5 per day | 379 | 49.9 |
| Alcohol intake ≥ 5 per week | 109 | 14.4 |
| Smoking (past) | 157 | 20.7 |
| Smoking (present) | 200 | 26.4 |
| Sports (present) | 469 | 61.8 |
| Sports (past) | 455 | 59.9 |
| Occupational exercise in the past | ||
| Mild | 122 | 16.1 |
| Moderate | 610 | 80.4 |
| High | 24 | 3.2 |
