Vitamin D Deficiency in Children and Adolescents in Bağcılar, İstanbul

Journal of Clinical Research in Pediatric Endocrinology
Meltem ErolÖzlem Bostan Gayret

Abstract

This study aimed to evaluate the frequency of seasonal 25-hydroxyvitamin D [25(OH)D] deficiency and insufficiency in children and adolescents living in Bağcılar, district of İstanbul city. Serum vitamin D levels of 280 children aged 3-17 years old were measured at the end of winter and at the end of summer. Of the total group, vitamin D levels were re-measured in 198 subjects. Vitamin D deficiency was defined as a serum 25(OH)D level less than 15 ng/mL and insufficiency-as levels between 15 and 20 ng/mL. Patients whose vitamin D levels were less than 15 ng/mL at the end of winter were treated with 2000 units/day of vitamin D for 3 months. In the "end of winter" samples, 25(OH)D deficiency was present in 80.36% of the subjects and insufficiency in 11.79%. In the "end of summer" samples, vitamin D deficiency was detected in 3.44% and insufficiency in 27.75%. Vitamin D levels in the "end of winter" samples were not significantly different between boys and girls, while "end of summer" levels were significantly lower in girls (p=0.015). Sunlight exposure was significantly higher in boys (p=0.011). The group with sufficient dairy product consumption had significantly higher vitamin D levels in both "end of summer" and "end of winter"...Continue Reading

Citations

Apr 9, 2016·Journal of Immigrant and Minority Health·Despoina GiannopoulouMaria Tsigga
Apr 8, 2017·Acta neurologica Belgica·Edibe Pempegül YildizNur Aydinli
Nov 2, 2017·European Journal of Nutrition·Yannis ManiosKevin D Cashman
Jan 5, 2019·Journal of Children's Orthopaedics·D SegalD Weigl

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