Serum 25-Hydroxy Vitamin D Level in Preeclamptic and Normotensive Pregnancies

To compare serum 25-hydroxy vitamin D level between preeclamptic and normotensive pregnancies.

Cross-sectional analytical study.

Department of Physiology, Federal Postgraduate Medical Institute, Shaikh Zayed Hospital, Lahore, in collaboration with Sir Ganga Ram Hospital and Lady Willingdon Hospital, Lahore, from March 2012 to April 2012.

Thirty registered preeclamptic patients with systolic and diastolic blood pressure > 140/90 mm Hg on more than two occasions, 6 hours apart, and proteinuria at least 300 mg in 24-hour urine collection; and 30 normotensive uncomplicated pregnant women matched for age, gestational age, parity and BMI were included by convenient sampling technique. Vitamin D levels of less than 50 n mol/l (< 20 ng/ml) was the cutoff point. Spearman's rank correlation of vitamin D with systolic blood pressure and arterial pressure in both preeclamptic and normotensive pregnant women was presented in a tabulated form.

Vitamin D deficiency was found in 95% of preeclamptic and normotensive pregnant women. The difference of vitamin D level between the two groups was not found significant. Although there was an inverse correlation between serum vitamin D and systolic blood pressure and arterial pressure in preeclamptic group, but this was not statistically significant.

Vitamin D deficiency does not seem to be affected by the state of preeclamptic and normotensive pregnancy. The correlation of systolic blood pressure and arterial pressure and vitamin D needs to be explored further by increasing the sample size.