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Table 1 Main characteristics of patients and controls

From: Quality of life in post-menopausal osteoporosis

  controls OP without fractures OP with fractures
number of women 35 62 38
age (years) 58.9 ± 7.9 64.5 ± 8.4 70.3 ± 7.8 *
BMI (kg/m2) 27.6 ± 3.4 25.6 ± 3.1 25.1 ± 2.9
age at menopause (years) 51.4 ± 2.9 51.9 ± 3.4 52 ± 3.8
BMD T-score    
   lumbar spine -1.3 ± .3 § -3.2 ± .8 -3.3 ± 1
   Femur -1.1 ± .5 § -2.6 ± .8 -3.1 ± 1.2°
education (years of school)    
   <= 8 31% (11 women) 34.4% (21 women) 35.9% (14 women)
   9–13 54.3% (19 women) 49.2% (30 women) 51.3% (20 women)
   >13 14.2% (5 women) 16.4% (10 women) 12.8% (5 women)
Family history of OP 8.5% (3 women)ˆ 27.8% (17 women) 28.2% (11 women)
  1. Data are expressed as mean ± SD and as percentages.
  2. Student's t test for unpaired data or chi-square of Fischer's exact test.
  3. OP = osteoporosis
  4. * p < 0.05 versus controls and versus OP without fractures
  5. ° p < 0.05 versus OP without fractures
  6. § p < 0.02 versus OP without fractures and versus OP with fractures
  7. ˆ p < 0.03 versus OP without fractures and versus OP with fractures