Vitamin D status of Asian mothers in Cardiff was investigated during e
arly pregnancy and at the time of the birth of their babies, using ser
um parathyroid hormone (PTH), Median values in Asian (n 32) and Caucas
ian (n 63) mothers in early pregnancy were 1 . 56 and 0 . 81 pmol/l re
spectively, PTH levels from a separate sample of nineteen Asian and tw
enty-five Caucasian mothers at the time of birth were 3 . 0 and 2 . 20
pmol/l respectively, Altogether twelve Asian and two Caucasian women
had elevated PTH. All Asian women who had high PTH values also had a v
ery low serum 25-hydroxycholecalciferol level (25OHD), Ah samples were
taken from women with no significant medical history and normal obste
tric history. These findings suggest that subclinical vitamin D defici
ency is still a cause for concern in Asian women, More active measures
need to be taken to implement current recommendations to improve thei
r vitamin D intake in pregnancy.