Table 2 Vitamin D and related parameters at inclusion

25(OH)D (nmol/L)^a

65.9 ± 25.9

66.2 ± 23.7

Free 25(OH)D (pmol/L)^b

15.3 ± 6.1

15.2 ± 5.8

Bioavailable 25(OH)D (nmol/L)^b

5.1 ± 2.1

5.1 ± 1.9

PTH (pmol/L)^a

2.7 ± 1.1

2.9 ± 1.1

Calcium (mmol/L)^a

2.27 ± 0.07

2.27 ± 0.07

Corrected calcium (mmol/L)^a

2.34 ± 0.06

2.33 ± 0.06

Phosphate (mmol/L)^a

1.19 ± 0.12

1.19 ± 0.12

Magnesium (mmol/L)^b

0.75 ± 0.05

0.75 ± 0.04

Vitamin D-binding protein (μmol/L)^b

5.7 ± 0.8

5.8 ± 0.8

Albumin (g/L)^a

36.8 ± 2.1

36.6 ± 2.0

Daily vitamin D intake (μg)

10.1 ± 6.6

10.8 ± 7.3

Daily Calcium intake (mg)^c

962.1 ± 350.0

987.6 ± 397.0

Women with 25(OH)D level < 50 nmol/L^a

125 (29.1)

107 (25.1)