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目的调查停供碘盐对高碘缺碘混杂地区育龄妇女和儿童碘营养状况的影响。方法在内蒙古杭锦后旗沙海乡的5个村抽取有育龄妇女及其16岁以下子女的家庭48户,实施无碘食盐干预3个月,采集尿样进行碘含量检测。结果停供碘盐后人群尿碘中位数由干预前的365.1μg/L下降到207.1μg/L,其中哺乳期妇女和0~2岁儿童的尿碘中位数分别由327.7μg/L和437.7μg/L下降到211.1μg/L和210μg/L,哺乳期妇女尿碘<200μg/L的比例占同类妇女的42.9%。结论在高碘缺碘混杂地区停供碘盐可能存在使部分重点人群发生碘缺乏的风险,建议供应低浓度碘盐。
Objective To investigate the effect of stopping iodized salt on iodine nutrition in women and children of childbearing age in iodine deficiency and iodine deficiency areas. Methods 48 families of women of childbearing age and their children under 16 years old were selected from 5 villages in Shahai Township, Hangjinhou Banner, Inner Mongolia. The iodine - free salt intervention was carried out for 3 months. Urine samples were collected for iodine detection. Results The urinary iodine median of the crowd after stopping the supply of iodized salt decreased from 365.1μg / L before intervention to 207.1μg / L, and the median urinary iodine of lactating women and children aged 0-2 years were 327.7μg / L and 437.7μg / L dropped to 211.1μg / L and 210μg / L, lactation women urinary iodine <200μg / L accounted for 42.9% of women of the same type. Conclusion Stopping iodized salt in iodine-iodine-deficient areas may lead to iodine deficiency in some key populations. It is advisable to supply low-concentration iodized salt.