• Laila M Sherief, Adel Ali, Ahmed Gaballa, Ghada Mohammed Abdellatif, Naglaa M Kamal, Mona R Afify, Diana H Abdelmalek, Sameh A El-Emari, Ahmed S A Soliman, and Wesam A Mokhtar.
• Faculty of Medicine, Zagazig University, Zagazig, Egypt.
• Medicine (Baltimore). 2021 Jul 23; 100 (29): e26661e26661.

AbstractVitamin D deficiency is a worldwide public health problem. Low vitamin D and its consequences among children and adolescents could be considered as one of the most important health-related problems. This study aimed to estimate the prevalence of vitamin D deficiency in healthy Egyptian adolescents and investigate factors associated with vitamin D status.A cross-sectional study was conducted on 572 school children (270 males and 302 females) aged 14 to 18 years, who were randomly selected from high schools in one governorate in Egypt. Data were collected through a self-administered questionnaire. Vitamin D level, serum calcium, phosphorus, alkaline phosphates were measured.Vitamin D deficiency was almost present in all the studied Egyptian healthy adolescents (99%), 94.8% had vitamin D deficiency and 4.2% had vitamin D insufficiency. Girls had a higher prevalence of vitamin D deficiency than boys. There was a significant association between lack of physical activity, sun exposure, and vitamin D deficiency.Vitamin D deficiency and insufficiency are highly prevalent. In sunny countries, the special pattern of conservative clothing and the lack of outdoor physical activity might be the underlying factors for the high prevalence in females. Vitamin D supplementation seems to be mandatory to halt the problem.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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