Vitamin D status in Norwegian children and adolescents with excess body weight

被引:41
作者
Lagunova, Zoya [1 ]
Porojnicu, Alina C.
Lindberg, Fedon A. [2 ]
Aksnes, Lage [3 ]
Moan, Johan [4 ]
机构
[1] Norwegian Radium Hosp, Inst Canc Res, Dept Radiat Biol, Oslo Univ Hosp, N-0310 Oslo, Norway
[2] Dr Fedon Lindbergs Clin, N-0256 Oslo, Norway
[3] Univ Bergen, Dept Clin Med, Paediat Sect, Bergen, Norway
[4] Univ Oslo, Dept Phys, N-0316 Oslo, Norway
关键词
adolescents; children; excess body weight; seasonal variation; vitamin D status; MASS INDEX; HYPOVITAMINOSIS-D; PARATHYROID-HORMONE; SEASONAL-VARIATION; EARLY-CHILDHOOD; OBESE CHILDREN; PREVALENCE; RISK; ASSOCIATION; OVERWEIGHT;
D O I
10.1111/j.1399-5448.2010.00672.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objectives: The prevalence of childhood and adolescent obesity has increased during the past decades. A high body mass index (BMI) is associated with a low vitamin D status. The purpose of this study was to determine the prevalence of vitamin D deficiency and insufficiency in Norwegian children and adolescents with excess body weight. Methods: Vitamin D status and seasonal variations of 25(OH)D and 1,25(OH)(2)D were analyzed in 102 children and adolescents (70 girls and 32 boys), 8-19 yr of age, with overweight and obesity. Results: Overall, 50% of the children and adolescents included in the study had a low vitamin D status (25(OH)D < 75 nmol/L) and 19% had vitamin D deficiency (25(OH)D < 50 nmol/L). This was most prevalent in adolescents. Only 42% of teenagers had 25(OH)D levels >= 75 nmol/L vs. 72% of preteens. Both 25(OH)D and 1,25(OH)(2)D showed seasonal variations. A peak in serum 25(OH)D concentrations was observed during the summer while the lowest values were seen during the spring. In contrast, serum 1,25(OH)(2)D had a peak during the spring and the lowest concentrations during the winter. Conclusions: The prevalence of vitamin D deficiency and insufficiency is higher in obese and overweight adolescents than in overweight children. This might be related to low outdoor activities and low vitamin D intake in teenagers. Seasonal variations of both the vitamin D metabolites were observed.
引用
收藏
页码:120 / 126
页数:7
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