Table 1.
Description of the study population at baseline (1992–1994) non-discrete variables (n = 759)
| Variable | Mean | SD | Range |
| BMD (g/cm2) | 0.94 | 0.17 | 0.46–1.59 |
| Age (years) | 61.0 | 6.8 | 50.1–79.4 |
| Weight (kg) | 70.9 | 11.6 | 45.0–115.5 |
| Height (cm) | 162 | 6.2 | 142–183 |
| BMI (kg/m2) | 27.1 | 4.2 | 18–45 |
| Fertility years* | 33.0 | 6.4 | 5–46 |
| Pregnancies | 2.9 | 2.1 | 0.0–14 |
| Coffee consumptions/day | 5.1 | 3.3 | 0.0–30 |
| Alcohol consumptions/week | 1.8 | 5.3 | 0.0–77 |
| Cigarettes/day smoked in the past | 3.4 | 8.5 | 0.0–50 |
| Years of smoking in the past | 4.8 | 11.3 | 0.0–54 |
| Cigarettes/day smoked in the present | 3.9 | 7.7 | 0.0–50 |
| Years of smoking in the present | 9.2 | 16.3 | 0.0–57 |
| Calcium intake (mg) | 903 | 407 | 133–2812 |
BMD, bone mineral density; BMI, body mass index
*Fertility years = age of last menstruation minus age of first menstruation