2016年内江市碘缺乏病监测结果分析

Surveillance Results of Iodine Deficiency Disorder in Neijiang City in 2016

目的了解人群碘营养状况,为下一步防治策略提供依据。方法在内江市东兴区、隆昌县、资中县范围内开展碘缺乏病监测,检查儿童甲状腺、重点人群尿中碘含量及家中食用盐碘含量、检测农村饮用水碘含量。结果共监测食用盐809份,碘盐覆盖率99.88%,合格碘盐食用率95.80%。重点人群尿碘中位数分别为:8~10岁儿童227.35~315.00μg/L,<50μg/L的比例为1.77%;孕妇108.40~157.05μg/L;育龄妇女145.55μg/L;哺乳期妇女125.15μg/L;0~2岁婴幼儿271.40μg/L。检查803名8~10岁儿童甲状腺,肿大23人,肿大率为2.86%。采盐业支公司盐库18份盐样,经实验室鉴定均合格;采集10个碘盐销售点食盐定性检测均为碘盐。采集农村饮用水10份,水碘中位数是8.94μg/L,<10μg/L的比例是50.00%。妇幼保健院新生儿甲状腺功能筛查发现5例甲低。结论内江碘缺乏病控制效果显著;部分人群碘营养过剩,需进一步加强碘缺乏病监测,动态评估人群碘营养状况。

Objective To understand the iodine nutritional status of the population and provide a basis for prevention and control in the future.Methods Iodine deficiency disorder(IDD) surveillance was conducted in Dongxing District,Longchang County and Zizhong County of Neijiang by examining children ' s thyroid glands,determining urine iodine content of the key population and the iodine content of edible salt and the iodine content in drinking water in rural areas.Results A total of 809 samples of edible salt was monitored.The iodized salt coverage rate was 99.88%;the use rate of qualified iodized salt was 95.80%.Urine iodine medians of key populations were as follows:children aged 8-10 years,227.35-315.00 μg/L(those with urine iodine< 50 μg/L accounted for 1.77%);pregnant women,108.40-157.05 μg/L;women of childbearing age,145.55 μg/L;lactating women,125.15 μg/L;infants and young children aged 0-2 years,271.40μg/L.The thyroid glands of 803 children aged 8-10 years were examined,and enlargement was found in 23(2.86%);18 salt samples were collected from the salt branch of the salt production company,and all complied with related requirements according to laboratory test results;salt samples collected from 10 sales sites were all identified as iodized salt;10 rural drinking water samples were collected,and the water iodine median was 8.94 μg/L,samples with iodine content<10 μg/L accounted for 50%.The neonatal thyroid function screening in maternal and child health hospitals found 5 cases of hypothyroidism.Conclusion The control effect of iodine deficiency disorders is remarkable in Neijiang City.Some people have taken excessive iodine.IDD surveillance should be further strengthened,and population iodine nutrition status should be evaluated dynamically.