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目的掌握山西省非高碘县及高碘县的非高碘地区新的盐碘标准实施后居民户碘盐使用情况。方法按照《碘缺乏病监测方案》的要求,2012年-2015年在全省11个市109个非高碘县(市、区)及10个高碘县(市、区)所辖非高碘地区,按东、西、南、北、中划分5个抽样片区,在每个片区各随机抽取1个乡(镇、街办)。在每个乡(镇、街办),随机抽取4个行政村(居委会);在每个行政村(居委会),随机抽检15户居民食用盐,进行盐碘检测。盐碘含量采用直接滴定法测定,川盐及其他强化盐采用仲裁法测定。结果 2012-2015年,碘盐覆盖率总体上一直维持在95%以上,全省盐碘中位数逐年下降,以新标准18-33mg/kg计,全省合格碘盐食用率逐年升高;2012年-2014年,以过渡期标准18-50mg/kg计,合格碘盐食用率总体上一直在90%以上,但≤90%的县数在增加;2015年,以新标准18-33mg/kg计,合格碘盐食用率为92.52%,但有16个县碘盐覆盖率﹤95%,有27个县≤90%,占到了全部县数的22.7%(27/119)。结论新的盐碘标准实施后,山西省新旧标准碘盐总体上过渡平稳,但存在合格碘盐食用率不达标的县数扩大的倾向,应引起重视。
Objective To understand the use of iodized salt of residents after the implementation of the new salt and iodine standard in non-high iodine counties in non-high iodine counties and high iodine counties in Shanxi Province. Methods According to the requirement of “Iodine Deficiency Disorders Surveillance Program”, from 2012 to 2015, non-iodine under the jurisdiction of 109 non-iodine counties (cities and districts) and 10 iodine-rich counties (cities and districts) Area, according to East, West, South, North, Central divided into five sample areas, each area randomly selected a township (town, street office). In each township (town, street), randomly selected 4 administrative villages (neighborhood); in each administrative village (neighborhood), a random sample of 15 households salt consumption, salt iodine detection. Salt iodine content was determined by direct titration, Sichuan salt and other fortified salt by arbitration. Results From 2012 to 2015, the coverage of iodized salt has been maintained at above 95%, and the median of salt iodine in the province has been declining year by year. According to the new standard of 18-33mg / kg, the percentage of qualified iodized salt in the province increased year by year. According to the transitional standard 18-50mg / kg in 2012-2014, the rate of qualified iodized salt has generally been above 90%, but the number of counties ≤90% is increasing; in 2015, the new standard 18-33mg / kg, the eligible iodine salt consumption rate was 92.52%, but the coverage of iodized salt in 16 counties was <95%, with 27% ≤90%, accounting for 22.7% (27/119) of the total counties. Conclusion After the implementation of the new salt and iodine standard, the old and new standard iodized salt in Shanxi Province has a smooth transition in general. However, there is a tendency that the number of counties with substandard iodized salt will not reach the standard to expand, which deserves our attention.