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Background : There has been a resurgence of nutritional rickets in children in many developing countries and some of the developed countries. Children between 6 and 18 months old are commonly affected. In order to find out the association between vitamin D and rickets we studied the vitamin D status of the neonates and their mothers in Kuwait.

Methods : Two hundred and fourteen full‐term pregnant mothers and their neonates were selected from two hospitals in Kuwait. All mothers had normal vaginal delivery. On the day of delivery 2.5 mL of maternal blood and 2.5 mL of cord blood samples were withdrawn. Serum 25‐hydroxyvitamin D (25OHD) was determined in duplicate by radioimmunoassay using an Incstar kit. Quality control analyses were done using several between and within run experiments.

Results : A total of 128 mother–neonate pairs were selected …