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目的了解实施《食用盐碘含量》新标准后易县学龄儿童碘营养状况,为碘缺乏病防治提供科学依据。方法对居民户碘盐、8~10岁儿童尿碘及甲状腺肿进行监测,并将实施《食用盐碘含量》新标准后2013年的碘营养监测结果与实施前的2011年碘营养监测结果进行对比分析。结果 2011年和2013年两次碘营养监测结果盐碘中位数分别为27.4 mg/kg和25.8 mg/kg,两年盐碘水平比较,差异有统计学意义(Hc=71.45,P<0.01)。尿碘中位数分别为204.12μg/L和201.33μg/L,两年儿童尿碘水平比较,差异无统计学意义(Hc=0.005,P>0.05)。8~10岁学龄儿童甲状腺肿大率分别为3.87%和3.92%,两年儿童甲状腺肿大率比较,差异无统计学意义(χ2=0.004,P>0.05)。结论实施《食用盐碘含量》新标准一年后,易县8~10岁儿童碘营养水平总体由原来的较适宜水平向理想水平过渡,但无碘盐和不合格碘盐比率有所升高,所以今后应继续加强碘盐的监测和监管。
Objective To understand the status of iodine nutrition in school-age children in Yixian County after implementing the new standard of “iodine content in edible salt”, and to provide a scientific basis for the prevention and treatment of iodine deficiency disorders. Methods Iodine salt, urine iodine and goiter in children aged 8 to 10 years were monitored. The monitoring results of iodine nutrition in 2013 and the 2011 iodine nutrition monitoring results before the implementation of the new standard of “iodine content in edible salt” Comparative analysis. Results The median iodine and iodine monitoring results of iodine nutrition in 2011 and 2013 were 27.4 mg / kg and 25.8 mg / kg, respectively. There were significant differences in salt and iodine levels between the two years (Hc = 71.45, P <0.01) . The urinary iodine median was 204.12μg / L and 201.33μg / L, respectively. There was no significant difference in urinary iodine between two years (Hc = 0.005, P> 0.05). The goiter rates of school-aged children aged 8-10 years were 3.87% and 3.92%, respectively. There was no significant difference in goiter rate between two years (χ2 = 0.004, P> 0.05). Conclusions After one year of implementing the new standard of “iodine content in edible salt”, the iodine nutrition level of children aged 8 ~ 10 years in Yixian generally transitioned from the ideal level to the ideal level, but the rate of non-iodized salt and unqualified iodized salt increased , So in the future should continue to strengthen the monitoring and supervision of iodized salt.