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目的对延庆县2008—2012年农村居民食用碘盐监测结果进行分析,为防治碘缺乏病及正确实施食盐加碘干预措施提供科学依据。方法按照《全国碘缺乏病监测方案》的要求从2008—2012年,在延庆县农村地区抽取9个乡镇进行居民食盐监测,每年抽取288份食盐样品按GB 13025.7-1999的要求使用直接滴定法测定碘含量。结果 2008—2012年碘盐覆盖率分别为95.80%、95.50%、92.00%、96.90%、97.22%,5年间碘盐覆盖率差异有统计学意义(P=0.022)。在进行两两比较之后得,2010与2011年9个乡镇的碘盐覆盖率的差异有统计学意义(P=0.011)。2010与2012年9个乡镇的碘盐覆盖率之间的差异亦有统计学意义(P=0.006)。2008—2012年碘盐合格率分别为98.60%、99.30%、98.10%、99.30%、99.29%,5年间差异无统计学意义(P=0.065)。结论延庆县碘盐合格率已达国家标准,但仍有部分居民食用不合格碘盐,建议进一步加强健康教育和对居民食用碘盐的监督监测工作,巩固防治结果。
Objective To analyze the monitoring results of iodized salt consumption of rural residents in Yanqing County from 2008 to 2012, and provide scientific evidence for the prevention and treatment of iodine deficiency disorders and the proper intervention of salt and iodine. Methods According to the requirements of “National Monitoring Program for Iodine Deficiency Disorders”, nine townships were sampled for salt monitoring in rural areas of Yanqing County from 2008 to 2012, and 288 salt samples were taken each year for determination according to the requirements of GB 13025.7-1999 using direct titration Iodine content. Results The coverage rates of iodized salt in 2008-2012 were 95.80%, 95.50%, 92.00%, 96.90% and 97.22%, respectively. The coverage of iodized salt in 5 years was significantly different (P = 0.022). After comparisons were made, the differences in iodized salt coverage in nine towns between 2010 and 2011 were statistically significant (P = 0.011). There was also a statistically significant difference in iodized salt coverage between nine towns in 2010 and 2012 (P = 0.006). The qualified rates of iodized salt in 2008-2012 were 98.60%, 99.30%, 98.10%, 99.35% and 99.29%, respectively, with no significant difference in 5 years (P = 0.065). Conclusion The passing rate of iodized salt in Yanqing County has reached the national standard. However, some residents still use unqualified iodized salt. It is suggested to further strengthen health education and supervise and monitor the consumption of iodized salt by residents so as to consolidate the results of prevention and treatment.