Table 2 Contributors to secondary osteoporosis identified in men and women >50 years with a recent clinical fracture (N = 100)

Endocrine disorders

   Serum 25-OHD₃ s ≤50 nmol/l

42

0

42

37

5

   Hyperparathyroidism secondary to low calcium intake

2

0

2

1

1

   Hyperthyroidism

3

3

0

3

0

   Hypogonadism (in men)

1

1

0

0

1

   Anorexia nervosa (in women)

2

2

0

2

0

   Diabetes mellitus

5

5

0

4

1

Gastrointestinal disorders

   Lactose intolerance

1

0

1

0

1

Connective tissue disorders

   Rheumatoid arthritis

2

2

0

1

1

   Giant-cell arteritis

1

1

0

1

0

Renal disorders

Renal insufficiency without secondary hyperparathyroidism

11

5

6

7

4

Renal insufficiency with secondary hyperparathyroidism

3

3

0

3

0

Miscellaneous

   Severe immobility

3

3

0

3

0

   Pulmonary diseases

5

5

0

4

1

Medication and life style

   Exogenous hyperthyroidism

1

0

1

1

0

   Alcohol abuse

4

4

0

2

2

Total number of contributors (N = 86)

86

34

52

69

17

Total number of patients with contributors to osteoporosis (N = 57)

57

27

50

45

12