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目的了解浙江省桐乡市蔬菜加工地区重点人群碘营养状况,评估碘缺乏的流行动态。方法按《全国碘缺乏病监测方案(试行)》规定的方法进行。直接滴定法测定居民户食用盐2307份;以过硫酸铵消解法检测重点人群——孕妇、育龄妇女、0～2岁婴幼儿、学龄儿童尿碘582份;采用时间分辨荧光免疫法测定新生儿足跟血促甲状腺激素(TSH)22246份。结果全市碘盐覆盖率、合格碘盐食用率以2004年最低,分别为89.24%、85.76%。孕妇、0～2岁婴幼儿平均尿碘中位数分别为68.79μg/L、94.02μg/L,部分重点人群尿碘水平低于国家标准,但呈上升趋势。TSH值大于5mIU/L的比率为5.79%(1290/22246),呈逐年下降趋势。结论应继续实行全民食盐加碘(USI)补碘措施,抓好合格碘盐覆盖率和重点人群碘营养监测是今后蔬菜加工区的工作重点。
Objective To understand the iodine nutrition status of key population in vegetables processing area of Tongxiang City, Zhejiang Province, and to evaluate the prevalence of iodine deficiency. Methods According to the “national iodine deficiency disorders monitoring program (Trial)” prescribed method. Direct titration method was used to determine 2307 servings of salt consumed by households; 582 urine iodine concentrations were detected in key populations - pregnant women, women of childbearing age, 0 ~ 2 years old children and school age children by ammonium persulfate digestion method; the neonatal Heel Thyroid Hormone (TSH) 22246 copies. Results The coverage rate of iodized salt and the qualified iodized salt in the whole city were the lowest in 2004, accounting for 89.24% and 85.76% respectively. The median urinary iodine of pregnant women and infants aged 0 ~ 2 years were 68.79μg / L and 94.02μg / L, respectively. Urinary iodine level in some key population was lower than the national standard, but the trend was rising. TSH value greater than 5mIU / L ratio was 5.79% (1290/22246), showed a downward trend year by year. Conclusion It is suggested that the USI supplementing iodine should be continued. Good coverage of qualified iodized salt and monitoring of iodine nutrition in key populations are the key points of vegetable processing areas in the future.