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Table 1 Description of the study population at baseline (1992–1994) non-discrete variables (n = 759)

From: Timing and risk factors for clinical fractures among postmenopausal women: a 5-year prospective study

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
  1. BMD, bone mineral density; BMI, body mass index
  2. *Fertility years = age of last menstruation minus age of first menstruation