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Table 1 Summary of patient demographics and clinical/biochemical characteristice (n = 112). All data are expressed as mean (SEM) and number (percentages).

From: The impact of vitamin D status on changes in bone mineral density during treatment with bisphosphonates and after discontinuation following long-term use in post-menopausal osteoporosis

 

Reference ranges

Age (years)

68.4 ± 0.87

 

Age at menopause (years)

46.6 ± 0.56

 

BMI (kg/m 2)

24.2 ± 0.43

 

Current smokers (%)

21 (18.6)

 

Alcohol intake ≤ 14 units/week (%)

52 (46.4)

 

Previous fragility Fracture (s) (%)

68 (60.7)

 

Family history of osteoporosis (%)

27 (24.1)

 

Family history of fracture (%)

20 (17.9)

 

History of falls (%)

31 (27.7)

 

Formal exercise (%)

37 (33.0)

 

Walking (≥ 30 minutes/day) (%)

26 (50.9)

 

Bisphosphonate treatment duration (years)

3.81 ± 0.28

 

Serum Calcium (nmol/l)

2.43 ± 0.01

2.2–2.6

Serum 25(OH) vitamin D (nmol/l)

70.6 ± 2.86

40–195

Serum Parathyroid Hormone (ng/l)

51.6 ± 3.12

10–65

Urine CTX (μg/mmol creatinine)

151.3 ± 16.43

45–1035