学生营养改善计划地区2013年度学生维生素D营养状况  

Vitamin D deficiency among students from the National Nutrition Improvement Program for Rural Compulsory Students in 2013

作　　者：张倩[1] 甘倩[1] 陈竞[1] 潘慧[1] 李荔[1] 徐培培[1] 杨媞媞 胡小琪[1] 

机构地区：[1]中国疾病预防控制中心营养与健康所,北京100050

出　　处：《中国学校卫生》2016年第5期664-666,共3页Chinese Journal of School Health

摘　　要：目的了解我国＂农村义务教育学生营养改善计划＂（以下简称＂学生营养改善计划＂）试点地区学生维生素D营养状况,为进一步改善我国贫困农村儿童营养健康状况提供基础数据。方法从＂学生营养改善计划＂覆盖的22个省（直辖市、自治区、新疆建设兵团）的50个重点监测县中,每县随机抽取小学和初中各2所,再从各年级抽取1-2个班的学生,每个年级抽取40名学生左右。2013年9—11月,共对10 760名5-19岁学生采集空腹静脉血,分离血清,用液相色谱串联质谱仪（LC-MS/MS）测定血清25（OH）D[含25（OH）D3和25（OH）D2]。结果学生血清25（OH）D平均水平为（20.7±11.0）μg/L,维生素D缺乏率[25（OH）D〈10μg/L]为12.3%,女生（14.3%）高于男生（10.2%）（χ^2=34.37,P〈0.01）,初中生（16.5%）高于小学生（10.0%）（χ^2=47.71,P〈0.01）。维生素D不足率[25（OH）D为10-20μg/L]为42.0%,女生（44.8%）高于男生（39.2%）（χ^2=41.70,P〈0.01）,初中生（46.5%）高于小学生（39.6%）（χ^2=95.48,P〈0.01）。结论 ＂农村学生营养改善计划＂试点地区的农村中小学生维生素D营养状况较差,应采取合理措施改善维生素的营养状况。Objective To understand the status of vitamin D deficiency（ VDD） and vitamin D insufficiency（ VDI） among students from the National Nutrition Improvement Program for Rural Compulsory Students（ NNIPRCS）. Methods One elementary school and one middle school were randomly selected from 50 key monitoring counties, 1- 2 classes of students were randomly selected from each school. Fasting venous blood samples were collected and LC- MS / MS method was used to determine 25（ OH） D concentration（ including 25（ OH） D3 and 25（ OH） D2）. Results Totally 10 760 students were enrolled in this study, 5 448 males and 5 312 females. The average 25（ OH） D concentration was（ 202. 7 ± 11. 0） μg / L. The prevalence of VDD was 12. 3%, female students（ 14.3%） were more likely to get VDD than male students（ 10.2%）（ P〈0.01）, students from elementary schools（ 16.5%）were more likely to get VDD than students from middle schools（ 10. 0%）（ P 0. 01）. The prevalence of VDI was 42. 0% in these students,female students（ 44.8%） and middle school students（ 46.5%） were more likely to get VDI than male students（ 39.2%） and elementary school students（ 39. 6%）. Conclusion Vitamin D Deficiency remains to be a public health problem in pilot areas of NNIPRCS.

关 键 词：维生素D 营养状况 学生 农村人口 

分 类 号：R153.2[医药卫生—营养与食品卫生学] R977.24[医药卫生—公共卫生与预防医学]