Vitamin D supplementation and reduced risk of preeclampsia in nulliparous women

M Haugen, AL Brantsæter, L Trogstad, J Alexander… - …, 2009 - journals.lww.com
Background: A recent study showed that nulliparous women who develop preeclampsia had
low concentrations of vitamin D in serum sampled in midpregnancy. The aim of the present
study was to estimate the association between intake of vitamin D during pregnancy and the
risk of preeclampsia in 23,423 nulliparous pregnant women taking part in the Norwegian
Mother and Child Cohort Study. Methods: Participating women answered questionnaires at
gestational week 15 (general health questionnaire), at week 22 (food frequency …