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目的了解和掌握新国标碘盐浓度(GB26878-2011)实施后贵州省儿童、孕妇碘营养状况及其碘缺乏病病情动态,完善长效防控机制,为制定碘缺乏病防制策略提供依据。方法采取人口比例概率抽样方法(PPS),在全省抽取30个县(市、区),每个县(市、区)随机抽取1所小学,每所小学抽取8~10岁儿童50名(男女各半、各年龄组均匀分布),B超检查甲状腺容积,检测尿碘及其家中食盐碘含量;在抽中小学所在乡(镇、街道办事处)随机采集20名孕妇即时尿样1份,检测尿碘含量。结果共检查8~10岁儿童1 536名,甲状腺肿大13人,甲状腺肿大率为0.85%;检测儿童尿样1 538份,尿碘中位数为218.3μg/L;检测居民户食用盐样1 538份,盐碘中位数为26.6mg/kg,碘盐覆盖率为99.6%,合格碘盐食用率92.1%,非碘盐率为0.4%。检测孕妇尿样594份,尿碘中位数为175.6μg/L。结论我省实行的新国标碘盐浓度基本满足儿童、孕妇碘营养需求,人群碘营养水平总体适宜、平稳。
Objective To understand and master the status of iodine deficiency disorders and iodine deficiency disorders in children and pregnant women in Guizhou Province after the implementation of the new national standard iodized salt concentration (GB26878-2011), perfect the long-term prevention and control mechanism, and provide the basis for the prevention and control strategy of iodine deficiency disorders. Methods PPS (Population Probability Probability Sampling) method was used to select 30 counties (cities and districts) in the province. One primary school was randomly selected in each county (city and district), and 50 children aged 8 to 10 Male and female half, evenly distributed in all age groups), B-ultrasound to check the thyroid volume, urinary iodine and salt in their homes to detect the content of; in primary schools in the township (town, neighborhood offices) , Detection of urinary iodine content. Results A total of 1 536 children aged 8-10 years were examined. Thyroid enlargement rate was 0.85%. A total of 1 538 urine samples were collected from children, urinary iodine median was 218.3 μg / L. 1 538 samples, the median salt iodine was 26.6 mg / kg, the iodine salt coverage was 99.6%, the acceptable iodine salt consumption rate was 92.1%, and the non-iodized salt rate was 0.4%. 594 urine samples were tested, and the median urinary iodine was 175.6μg / L. Conclusion The new national standard iodized salt concentration in our province basically meets the needs of iodine nutrition in children and pregnant women. The iodine nutrition level of the population is generally suitable and stable.