From: Plasma concentrations of 25-hydroxyvitamin D among Jordanians: Effect of biological and habitual factors on vitamin D status
Parameter
Males
Females (according to dress style)
Western Style
Hijab
Niqab
25(OH)D (nmol/l)
44.5 ± 101
40.0 ± 8.32
31.3 ± 6.3
28.5 ± 3.8
Calcium (mmol/l)
2.33 ± 0.283
2.25 ± 0.25
2.23 ± 0.25
2.18 ± 0.24