Maternal vitamin D status in pregnancy and adverse pregnancy outcomes in a group at high risk for pre-eclampsia

A. W. Shand, N. Nassar, P. Von Dadelszen, S. M. Innis, T. J. Green

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147 Citations (Scopus)


Objective To determine in a group of pregnant women if vitamin D status, based on serum 25-hydroxyvitamin D (25OHD) concentration, was associated with a subsequent risk of pre-eclampsia or adverse pregnancy outcomes. Design Prospective cohort study. Setting Vancouver, British Columbia, Canada (49°N). Population Women attending a specialist antenatal clinic because of clinical or biochemical risk factors for pre-eclampsia (n=221). Methods Serum 25OHD concentration measured between 10 and 20weeks of gestation. Main outcome measures Pre-eclampsia and composite adverse pregnancy outcomes. Results Of the women, 78% were vitamin D insufficient (25OHD <75nmol/l) and 53% were vitamin D deficient (25OHD <50nmol/l). There was no difference in the rates of pre-eclampsia, gestational hypertension, preterm birth or composite adverse pregnancy outcomes by 25OHD concentration. Conclusions Vitamin D deficiency and insufficiency were common in a group of women at high risk of pre-eclampsia; however, it was not associated with subsequent risk of an adverse pregnancy outcome.

Original languageEnglish
Pages (from-to)1593-1598
Number of pages6
JournalBJOG: An International Journal of Obstetrics and Gynaecology
Issue number13
Publication statusPublished or Issued - Dec 2010


  • Pre-eclampsia
  • pregnancy outcome
  • vitamin D

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

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