Prevalence of vitamin D deficiency in mothers and their newborns in a Tunisian population.

Objective: To assess vitamin D status in mothers and their newborns and identify predictive factors of vitamin D deficiency.

Methods: A cross-sectional study was undertaken of healthy women and their full-term newborns delivered at the Charles Nicolle Hospital, Tunis, Tunisia, between October and November 2012. Maternal and neonatal serum 25-hydroxy vitamin D (25(OH)D) concentrations were measured.