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目的了解宜昌市碘缺乏病防治效果及碘营养状况,为碘缺乏病的防治提供科学依据。方法根据《全国碘盐监测方案》采样,采用GB/T 13025.7-2012《制盐工业通用试验方法碘离子的测定》、WS/T 107-2006《尿中碘的砷铈催化分光光度测定方法》测定样品。参照GB 26878-2011《食品安全国家标准食用盐碘含量》评价碘盐。尿碘<100μg/L为碘不足;100~199μg/L为碘适量;200~299μg/L为碘超适量;>300μg/L为碘过量。结果 2013~2014年宜昌市盐碘含量平均值分别为26.86和23.53mg/kg,两年间盐碘频数分布比较有统计学意义(P<0.01),不同地区碘盐分布频数比较有统计学意义(P<0.01);尿碘含量中位数分别为237.00和268.00μg/L;两年间尿碘频数分布比较有统计学意义(P<0.01),不同地区尿碘频数分布比较无统计学意义(P>0.05)。结论宜昌市碘盐供应较好,合格碘盐食用率符合国家标准,儿童碘营养状况处于超适宜状态。
Objective To understand the effect of iodine deficiency disease control and iodine nutrition in Yichang City and provide a scientific basis for the prevention and treatment of iodine deficiency disorders. Methods According to the “National iodized salt monitoring program” sampling, the use of GB / T 13025.7-2012 “Salt Industry General Test Method for Determination of Iodide,” WS / T 107-2006 “urinary iodine arsenic cerium catalytic spectrophotometry” The sample is measured. Reference to GB 26878-2011 “National Food Safety Standard iodine content of salt” evaluation of iodized salt. Urine iodine <100μg / L for iodine deficiency; 100 ~ 199μg / L for iodine amount; 200 ~ 299μg / L for iodine excess amount;> 300μg / L for iodine excess. Results The average salt iodine contents in Yichang City during 2013 ~ 2014 were 26.86 and 23.53 mg / kg, respectively. The frequency distribution of salt and iodine in two years was statistically significant (P <0.01). The frequency of iodized salt distribution in different areas was statistically significant P <0.01). The median urinary iodine content was 237.00 and 268.00 μg / L, respectively. The distribution of urinary iodine frequency in two years was statistically significant (P <0.01), and urinary iodine frequency distribution in different areas was not statistically significant (P > 0.05). Conclusion The supply of iodized salt in Yichang City is good, the consumption rate of qualified iodized salt conforms to the national standard, and the iodine nutrition status of children is in a super-comfortable state.