The Turkish Journal of Pediatrics 2014 , Vol 56 , Num 5
Effects of Seasonal Variation and Maternal Clothing Style on Vitamin D Levels of Mothers and Their Infants
1Well Child Clinic and 2Department of Pediatric Endocrinology, Ankara Child Health and Diseases Hematology-Oncology Research and Training Hospital, Ankara, Turkey. E-mail:
Received: 23 January 2014, Revised: 25 March 2014, Accepted: 30 April 2014
In Turkey, vitamin D deficiency has been seen in children as well as in their mothers. We assessed the vitamin D status of 83 infants and their mothers, categorized into four groups according to season and mothers’ clothing style. We measured serum levels of 25-hydroxy vitamin D, calcium, inorganic phosphorus and alkaline phosphatase in each mother-infant pair. In the summer, the rate of vitamin D deficiency was higher in mothers who wore clothing that covered nearly all of the body (55%) than in mothers whose clothing covered less of the body (13.6%) (p=0.016). In the winter, nearly half of both groups of mothers had vitamin D deficiency or insufficiency, and there were no significant differences based on their clothing style (p>0.05). In all groups of infants, vitamin D deficiency and insufficiency rates were found to be very low. It seems that 400 IU/daily vitamin D intake is adequate for infants in Turkey; for mothers, we propose vitamin D supplementation during the pregnancy and lactation period. Keywords : clothing, infant, mother, seasonal variation, vitamin D deficiency.
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