宁夏两市7～17岁儿童青少年血清微量元素水平  

Serum level of trace elements and its relationship with obesity among 7 to 17 years old children and adolescents in Ningxia

作　　者：曹娟 王婷 李静 刘尚红 孙丽姣 赵海萍 CAO Juan;WANG Ting;LI Jing;LIU Shanghong;SUN Lijiao;ZHAO Haiping(School of Public Health and Management,Ningxia Medical University,Yinchuan（750004）,China)

机构地区：[1]宁夏医科大学公共卫生与管理学院儿少与健康教育学系,银川750004

出　　处：《中国学校卫生》2018年第9期1307-1309,1313,共4页Chinese Journal of School Health

基　　金：宁夏高等学校一流学科建设(公共卫生与预防医学学科)资助项目(NXYLXK2017B08)

摘　　要：目的了解宁夏银川、吴忠2个市儿童青少年血清微量铁、锌、铜元素水平,为保障儿童青少年的健康成长提供参考。方法采用分层整群抽样方法,于2014年9月在宁夏银川市和吴忠市中小学校抽取学生1 865名进行问卷调查、体格测定、静脉采血,采用电感耦合等离子体发射光谱仪测定离心血清中微量元素铁、锌、铜水平。结果宁夏银川、吴忠市儿童青少年血清微量元素水平的中位数(四分位数间距)铁为20.10(22.07) mg/L,锌为2.85(2.69) mg/L,铜为0.76(0.39) mg/L,不同性别儿童青少年铁、锌元素水平差异均无统计学意义(Z值分别为-0.19,-1.16,P值均>0.05),铜元素水平女生高于男生(Z=-2.20,P=0.03);不同年龄分期比较,青春期血清铁、锌水平高于青春期前期(Z值分别为-4.05,-6.41,P值均<0.01),青春期铜水平低于青春期前期(Z=-5.53,P=0.00);不同体型儿童青少年3种血清微量元素水平比较,体重正常组高于消瘦、超重、肥胖组,铁、铜元素水平差异有统计学意义(χ~2值分别为3.75,6.52,P值均<0.01),4组间锌元素水平差异无统计学意义(P>0.05)。结论肥胖与血清微量元素铁、锌、铜水平相关。学校应进一步加强对儿童青少年营养相关知识的健康教育,提高健康保健意识。Objective To investigate serum level of trace elements including iron,zinc and copper and its relationship with obesity. Methods Questionnaire survey,physical examination and venous blood sampling was conducted among 1 865 students randomly sampled from primary and middle schools in Yinchuan and Wuzhong city of Ningxia during September 2014. The level of trace elements including iron,zinc and copper in centrifugal serum were determined by inductively coupled plasma optical emission spectrometry（ ICP-OES）. Results Serum level of iron,zinc and copper in children and adolescents in Yinchuan and Wuzhong was 20.10（ 22.07） mg/L,2.85（ 2.69） mg/L and 0.76（ 0.39） mg/L,respectively. No sex difference was found in serum iron and zinc level（ P〈0.05）,serum level of copper in girls was higher than that in boys（ Z =-2.20,P = 0.03）. Serum level of trace elements were higher among normal weight students compared with students with underweight,overweight or obesity,statistical difference was observed in iron and copper（ P〈0.01）. Conclusion Obesity correlates with serum trace elements level. Health education should be further promoted through local schools,aiming to improve health literacy among primary and secondary students.

关 键 词：元素 血液化学分析 对比研究 学生 

分 类 号：R179[医药卫生—妇幼卫生保健] R151[医药卫生—公共卫生与预防医学]