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目的了解淮安市育龄妇女碘营养状况及执行碘盐新标准后尿碘含量变化情况。方法 2009年起,对淮安市8县(区)的18~40岁育龄妇女进行连续尿碘监测,以了解其碘营养状况,同时监测居民户盐碘含量,采用SPSS 19.0分析尿碘值变化情况,P<0.05为差异有统计学意义。结果 2009-2015年共监测食盐16 584份,历年盐碘合格率、合格碘盐食用率均达到国家标准。2013-2015年盐碘均值全部小于2009-2012年盐碘均值,差异有统计学意义(t=76.9,P<0.01);2009-2015共检测尿样本10 500份,历年100~300μg/L的样本分别占49.20%、50.93%、58.00%、76.33%、79.40%、80.20%、82.13%,差异有统计学意义(χ~2=856.7,P<0.01)。2009-2011年的百分率低于2012-2015年,差异有统计学意义(χ~2=913.0,P<0.01)。2012-2015年尿碘中位数均在100~200μg/L,2009-2011年尿碘中位数全部>200μg/L,差异有统计学意义(Z=26.8,P<0.01)。结论执行碘盐新标准后,淮安市育龄妇女尿碘中位数及频数分布更接近适宜水平。
Objective To understand the iodine nutrition status of women of childbearing age in Huaian City and the change of urinary iodine content after implementing the new standard of iodized salt. Methods From 2009 onwards, continuous urinary iodine monitoring was carried out in 18-year-old women of childbearing age in 8 counties (districts) of Huaian City in order to understand the iodine nutrition status and to monitor the salt iodine content of residents. SPSS 19.0 was used to analyze the change of urinary iodine value , P <0.05 for the difference was statistically significant. Results A total of 16 584 salt samples were monitored during 2009-2015. The passing rate of salt and iodine over the years and the eligible iodized salt consumption all reached the national standards. The average salt-iodine value in 2013-2015 was less than the average value of salt-iodine in 2009-2012 (t = 76.9, P <0.01); 10 500 urine samples were collected in 2009-2015, The samples accounted for 49.20%, 50.93%, 58.00%, 76.33%, 79.40%, 80.20% and 82.13%, respectively. The difference was statistically significant (χ ~ 2 = 856.7, P <0.01). The percentage of 2009-2011 was lower than that of 2012-2015, the difference was statistically significant (χ ~ 2 = 913.0, P <0.01). The median of urinary iodine between 100 and 200 μg / L in 2012-2015 was all> 200 μg / L between 2009 and 2011, with a significant difference (Z = 26.8, P <0.01). Conclusion After implementing the new iodized salt standard, the median and frequency of urinary iodine in women of childbearing age in Huaian are closer to the appropriate level.