广西沿海农村地区学龄儿童碘营养状况

Lodine nutrition status of school-age children in rural areas along coastal of Guangxi

目的了解广西沿海农村地区学龄儿童碘缺乏病流行病学特征,为科学防制碘缺乏病提供科学依据。方法采用现况调查水平,以多级抽样的方法从广西全部沿海6县（区）的农村中抽取726名8～10岁学龄儿童。采集每名儿童的尿样测定尿碘水平,同时进行身高和体重、甲状腺容积测量、智商测定和膳食情况调查。结果儿童平均身高、体重和体质量指数分别为（127.38±6.94）cm、（23.87±3.81）kg和（14.63±1.37）kg/m2,尿碘中位数为141.05μg/L,甲状腺肿大率为8.54%,IQ均值为（97.07±18.32）。高碘食物摄入频率与儿童甲状腺肿大率具有相关性（r=0.893,P〈0.01）。结论广西沿海农村地区学龄儿童碘营养不足。应采取有效措施提高碘盐覆盖率,降低碘缺乏风险。

Objective To investigate the current epidemiological characteristics of iodine deficiency disorders among the school-age children in rural areas along the coast of Guangxi,in order to provide evidence for controlling iodine deficiency disorders.Methods A total of 726 school-age children from all the six coastal counties in Guangxi were selected by multistage sampling.Among the students,urinary iodine test and food frequency questionnaires,and also measurement of height,weight,the thyroid volume and IQ tests were conducted.Results Children＇ s average height,weight and BMI were（127.38±6.94） cm,（23.87±3.81） kg and（14.63±1.37） kg / m2respectively.The median urinary iodine of children was 141.05 μg / L,goiter rate was 8.54% and their IQ average was 97.07±18.32.The high iodine food intake frequency was correlated to the prevalence rate of goiter among children（r = 0.893,P〈0.01）.Conclusion The iodine nutrition of the school-age children in rural areas along the coast of Guangxi is insufficient.Some effective measures should be taken immediately to improve the coverage ratio of iodized salt,thus to reduce the risk of iodine deficiency.