Differences in vitamin D status and calcium metabolism in Saudi Arabian boys and girls aged 6 to 18 years: effects of age, gender, extent of veiling and physical activity with concomitant implications for bone health

Public Health Nutrition

Susan A Lanham-New¹  Jalal A Kahn¹  Maryam A Al-Ghamdi¹ 

关键词: Vitamin D;    Bone density;    Parathyroid hormone;    Middle East;    Veiling;    Sunlight exposure;   

DOI  :  10.1017/S1368980011003612

学科分类：卫生学

来源: Cambridge University Press

【 摘 要 】

AbstractObjectiveFew data exist looking at vitamin D status and bone health in school-aged boys and girls from Saudi Arabia. The present study aimed to determine the extent of poor vitamin D status in school boys and girls aged 6–18 years and to examine if there was any difference in status with age, physical activity and veiling and concomitant effects on bone.DesignCross-sectional study.SettingJeddah, Kingdom of Saudi Arabia.SubjectsA total of 150 boys (7–16 years) and 150 girls (6–18 years) from local schools were divided into age categories: 6–9 years (elementary school); 10–12 years (secondary school); 13–14 years (middle years); 15–18 years (high school).ResultsVitamin D status was significantly lower in girls than boys in all age groups (P < 0·01), with the 15–18-year-old girls having the lowest level (22·0 (sd 9·4) nmol/l) in comparison to the 15–18-year-old boys (39·3 (sd 14·0) nmol/l) and the 6–9-year-old girls (41·2 (sd 9·3) nmol/l). Parathyroid hormone status was highest in the 15–18-year-old girls in comparison to boys of the same age. A total of 64 % of 15–18-year-old girls had 25-hydroxyvitamin D (25OHD) status

【 授权许可】

Unknown