2004年山西省碘盐监测结果分析

2004 analysis on results of surveillance on salt iodization in Shanxi Province

目的全面、准确了解山西省碘盐现况,为进一步推动持续消除碘缺乏病工作提供科学依据。方法根据《全国碘盐监测方案》(试行),第一层次每个一级批发企业每月按东、南、西、北、中5个方位抽取一批 9份盐样检测其含碘量;第二层次每县按东、南、西、北、中5个方位抽取9个乡,每个乡抽4个村,每个村抽取8 份盐样,每县共采集288份盐样检测其含碘量。结果全年共监测第一层次碘盐52批次,批质量合格率100％, 盐碘均值32．22 mg/kg,变异系数16．17％,标准差5．21mg／kg;第二层次共监测居民食用盐86个县23705份, 碘盐覆盖率96．06％,碘盐合格率94．86％,合格碘盐食用率91．50％。结论山西省总体上处于碘缺乏病可持续消除状态,但非碘盐冲击问题在局部地区依然存在。

Objective To understand the status of salt iodization in Shanxi Province in 2004, which will provide scientific bases for the work of continuously eliminating iodine deficiency disorders. Methods Based on the National Project of Iodized Salt Surveillance （revision）, at the first level, 9 samples of salt were randomly sampled from one batch in each first-degree wholesale enterprise every month. At the second level, 9 towns were selected in 5 different directions of east, south, west, north and center in every county and then 4 villages were selected in each selected town. 8 samples of salt were randomly collected in each village. As a result, a total of 288 samples underwent the detection of iodine concentration. Results 52 batches of salt were monitored at the first level, 100% of the batches were qualified, the average of iodine was 32.22 mg/kg, the variance coefficient was 16.17% and the standard deviation was 5.21 mg/kg. At the second level, among 23 705 samples of edible salt monitored in 86 counties, iodized salt accounting for 96.06%, 94.86% of the iodized salt was qualified and the rate of qualified iodized salt was 91.50%. Conclusions The surveillance shows, as a whole, iodine deficiency disorder is being eliminated in Shanxi Province. But, non-iodized salt still exists in the market in some areas.