High prevalence of vitamin D deficiency in school-age children in Tehran, 2008: a red alert

Majid Hajifaraji

Objective: TO assess the vitamin D status of 9-12-year-old primary-school children in Tehran during autumn and winter 2007-2008.Design: A descriptive cross-sectional study.Setting: Primary schools of Tehran city, Iran.Subjects: A total of 1111 children aged 9-12 years (573 boys and 538 girls) from sixty primary schools were enrolled in the study.

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