Frequency and trend of vitamin D deficiency in correlation with demographic and selected biochemical parameters in Karachi, Pakistan.

Objective: To evaluate the frequency and trend of vitamin D deficiency, and to find its correlation with demographic and selected biochemical parameters.

Methods: The retrospective study was conducted at The Indus Hospital, Karachi, and comprised clinical laboratory data of individuals tested for vitamin D from January 2013 to March 2018. The trend of vitamin D deficiency and frequency was assessed in relation to age, gender and serum levels of calcium, phosphorus, magnesium, alkaline phosphatase and parathyroid hormone.

High prevalence of vitamin D deficiency in Pakistani mothers and their newborns.

Objective: To determine the prevalence of vitamin D deficiency in Pakistani parturients and their newborns and to assess the correlation between maternal and newborn serum levels of the vitamin D metabolite 25-hydroxy vitamin D3.

Methods: A prospective study of parturients presenting to the labor suite with a singleton pregnancy. Maternal and cord blood were collected for estimation of serum 25-hydroxy vitamin D3.