Abstract
OBJECTIVE: We evaluated the prevalence of vitamin D deficiency in the antenatal patients attending North Middlesex University Hospital between March 2008 and March 2009. STUDY DESIGN: A prospective study of maternal levels of vitamin D at booking. RESULTS: The prevalence of both deficient and insufficient levels of 25[OH]D was 87.6% across all included patients. CONCLUSION: There is a high prevalence of asymptomatic vitamin D deficiency in the antenatal booking population.