目的 了解2013年食盐加碘浓度下调后对汉阳区8～10岁儿童尿碘浓度的影响,从而反映食盐碘浓度对人群碘营养的作用.方法 以系统抽样方法抽取碘盐样本及8～10岁儿童尿碘样本,采用SPSS 17.0统计学软件进行数据处理,采用趋势分析、t检验及x2检验分析碘含量及尿碘的变化关系.结论 2011-2015年碘盐覆盖率及合格率差异无统计学意义(P=0.26),2011-2015年5年间碘盐含量不稳定(F=691.85,P<0.05),2012-2015年8～10岁儿童尿碘不稳定(F=7.22,P<0.05),2013-2014年,食盐碘含量下降约3.89 mg/kg,尿碘含量下降约74.20 mg/kg.结论 2013年前汉阳区食盐碘含量较高,8～10岁儿童尿碘水平较高;2013年食盐碘含量调整后在一定程度上降低了8～10岁儿童尿碘含量,对降低居民甲状腺疾病有着积极意义,建议进一步稳定食盐碘含量,同时强化科学用盐、科学食用盐等的健康教育.%Objectives To know the influence of salt iodine concentration reduce in 8~10 years old children urinary iodine concentration and reaction salt iodine concentration on the crowd iodine nutrition.Methods Extracting iodized salt samples and 8 to 10 years old children urine iodine samples with Systematic sampling method,analyze data in SPSS17.0 using trend analysis,t test and chi-square test analysis to know the relation between Iodine content and urinary iodine.Results In 2011-2015,the qualified rate of iodized salt coverage and there was no significant difference(P=0.26)and iodized salt content is unstable(F=691.854,P<0.05).In 2012-2015,children aged 8~10 urinary iodine is unstable(F=7.215,P<0.05),in 2013-2014,salt iodine fell 3.89 mg/kg and at the same times,urinary iodine levels decrease about 74.20 mg/kg.Conclusions The salt iodine content and 8 to 10 years old children urine iodine in Hanyang city is very high since 2013,and the reduce of salt iodine content make 8 to 10 years old children urine iodine decrease in Hanyang city,which have positive significance in reduce the residents thyroid disease.In the future,we must further stabilize iodine content,at same time,we need strengthening health education in science with salt,edible salt and so on.
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