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[目的]了解黔东南州居民食用碘盐情况和尿碘水平,为制定防治IDD策略提供科学依据。[方法]根据《全国碘盐监测方案》对黔东南州16县(市)抽取2176个监测点,采集23205份居民盐样,采用直接滴定法(GB/T13025.7-1999)进行检测。[结果]2005～2009年共检测23205份居民户食盐,盐碘中位数32.60mg/kg,碘盐覆盖率99.71%,碘盐合格率97.38%,合格碘盐食用率97.09%,非碘盐检出率0.29%,不同年度各率差异有统计学意义(P﹤0.01)。除从江县的居民户合格碘盐食用率﹤90%外,其余的15个县(市)均﹥95%。尿碘中位数2006年为353.5μg/L,2009年为344.15μg/L。[结论]黔东南州除从江县外其余15个县(市)的碘盐覆盖率和居民户合格碘盐食用率达到国家消除IDD标准。另外,由于碘含量(盐碘中位数32.60mg/kg)过高,可能会对某些个体产生不良影响,盐碘含量可以考虑下调至15～20mg/kg。
[Objective] To understand the situation of iodine salt consumption and urinary iodine level in residents of Qiandongnan Prefecture and provide scientific basis for formulating IDD strategy. [Method] According to “National Iodized Salt Surveillance Program”, 2176 monitoring points were collected from 16 counties (counties) in Qiandongnan Prefecture. 23,205 residents were sampled for salt samples and detected by direct titration (GB / T13025.7-1999). [Result] The average salt concentration of salt was 32.60mg / kg, the iodine salt coverage was 99.71%, the pass rate of iodized salt was 97.38%, the qualified iodized salt was 97.09%, non-iodized salt The detection rate was 0.29%, and there was significant difference between different years (P <0.01). Except for the qualified iodized salt consumption rate <90% of households in Congjiang County, the remaining 15 counties (cities) were> 95%. The median urinary iodine was 353.5 μg / L in 2006 and 344.15 μg / L in 2009. [Conclusion] The iodized salt coverage rate and the qualified iodized salt consumption rate of Qiandongnan Prefecture in the remaining 15 counties (cities) except Congjiang County reached the national elimination IDD standard. In addition, the iodine content (iodine median 32.60mg / kg) is too high, may have some adverse effects on individuals, salt iodine content can be considered down to 15 ~ 20mg / kg.