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目的了解福建省食用盐碘含量调整前不同人群的碘营养现状,为今后评估调整效果提供依据。方法 2011年在福建省84个县(市、区),每个县按照东、西、南、北、中各随机抽取一定比例的乡(镇、街道),进行居民户食用盐碘含量监测;每个县各抽取5个乡(镇、街道),每个乡(镇、街道)抽取8～10岁20名儿童,检测其尿碘含量;在全省按照PPS法抽取30个县(市、区),每个县抽取3个乡(镇、街道),每个乡(镇、街道办事处)抽取孕妇和哺乳期妇女各5人检测尿碘。结果全省共监测24 277份盐样,盐碘中位数28.93 mg/kg,合格碘盐食用率为96.96%,碘盐覆盖率为98.21%,碘盐合格率为98.73%。8 440名8～10岁儿童尿碘中位数为192.0μg/L,内陆地区8～10岁尿碘中位数高于沿海地区儿童。孕妇尿碘中位数为147.2μg/L,低于WHO推荐的150～249μg/L;哺乳期妇女尿碘水平为134.1μg/L,达到WHO推荐的100μg/L。结论现有的碘盐浓度下福建省居民碘营养水平基本适宜,不存在碘过量的问题,需关注孕妇碘营养不足的问题。
Objective To understand the status of iodine nutrition in different populations before the adjustment of iodine content in edible salt in Fujian Province and to provide the basis for evaluating the adjustment effect in future. Methods In 2011, 84 counties (cities and districts) in Fujian Province were selected, and a certain proportion of townships (towns and sub-districts) were randomly sampled from east, west, south, Five counties (towns and streets) were sampled from each county, 20 children aged 8 to 10 were collected from each township (town, street) to test their urine iodine content. Thirty counties (cities, District). Three counties (towns and sub-districts) were drawn from each county. Urine iodine was taken from 5 pregnant women and 5 lactating women in each township (township and sub-district offices). Results A total of 24 277 salt samples were monitored in the province. The median salt iodine concentration was 28.93 mg / kg. The acceptable iodine salt consumption rate was 96.96%, the iodized salt coverage rate was 98.21%, and the iodized salt pass rate was 98.73%. The median urinary iodine of 8 440 children aged 8-10 years was 192.0 μg / L, and the median urinary iodine of 8-10 years old in inland areas was higher than that in coastal areas. The urinary iodine median of pregnant women was 147.2μg / L, lower than the WHO recommended 150 ~ 249μg / L; lactation women’s urinary iodine level was 134.1μg / L, reaching the WHO recommended 100μg / L. Conclusion The existing iodine salt concentration in Fujian Province, iodine nutrition level basically appropriate, there is no problem of iodine excess, the need to pay attention to the problem of iodine deficiency in pregnant women.