2015~2019年南京市建邺区居民食用盐碘含量监测结果分析

目的 了解建邺区2015~2019年居民食用盐碘含量情况，为碘缺乏病防治工作提供科学依据。方法 采用分层随机抽样方法，每年随机抽取300份居民户家庭盐样，用GB/T13025.7-2012直接滴定法测定食用盐碘含量。结果 2015~2019年共采集1485份居民户家中食用盐，合格碘盐1413份，非碘盐32份，碘盐覆盖率为97.85%，碘盐合格率为97.25%，合格碘盐食用率为95.15%，非碘盐率为2.15%。其中盐碘含量均值为23.69 mg/kg，中位数为23.68 mg/kg，盐碘标准差为5.24 mg/kg；2015~2019年各年间非碘盐率、碘盐覆盖率比较，差异无统计学意义（P＞0.05）；各年间碘盐合格率比较，差异有统计学意义（P＜0.05）；各年间合格碘盐食用率比较，差异有统计学意义（P＜0.05）；每年的碘盐覆盖率与合格碘盐食用率均达到国家消除碘缺乏病标准。结论 建邺区居民的碘盐覆盖率、碘盐合格率及合格碘盐食用率均较高，但还存在一定的非碘盐。今后仍需继续做好合格碘盐的供应和监测，同时加大碘缺乏病的防冶知识宣传力度。

Analysis on Monitoring Results of Edible Salt Iodine Content of Residents in Jianye District of Nanjing City from 2015 to 2019

Objective To understand the iodine content of edible salt in residents of Jianye District from 2015 to 2019, and provide scientific evidence for the prevention and treatment of iodine deficiency diseases. Methods A stratified random sampling method was used to randomly select 300 household salt samples per year, and the iodine content of edible salt was determined by direct titration with GB/T13025.7-2012. Results From 2015 to 2019, a total of 1485 household salt was collected from households. The qualified iodized salt was 1413 parts, the non-iodized salt was 32 parts, the iodized salt coverage rate was 97.85%, the iodized salt qualified rate was 97.25%, and the qualified iodized salt consumption rate was 95.15%. The non-iodium salt rate was 2.15%. The average salt iodine content was 23.69 mg/kg, the median was 23.68 mg/kg, and the standard deviation of salt iodine was 5.24 mg/kg. There was no significant difference in non-iodized salt rate and iodized salt coverage between 2015 and 2019 (P>0.05). The difference of iodized salt qualified rate in each year was statistically significant (P<0.05). The difference in the consumption rate of iodized salt was statistically significant (P<0.05). The annual coverage rate of iodized salt and the consumption rate of qualified iodized salt reached the national standard for eliminating iodine deficiency. Conclusion The iodized salt coverage rate, iodized salt qualified rate and qualified iodized salt consumption rate of Jianye District residents are higher, but there is still a certain non-iodized salt. In the future, it is still necessary to continue to supply and monitor qualified iodized salt, and at the same time increase the awareness of anti-smelting knowledge of iodine deficiency diseases.