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目的掌握食盐碘含量标准调整后儿童的碘营养状况,为科学补碘提供可靠依据,巩固本区碘缺乏病防治成果。方法对国家食盐碘含量标准调整前(2011年)后(2016年)徐州市泉山区的8~10岁学龄儿童碘营养监测结果进行比较。结果国家食盐碘含量标准调整后(2016年)检测的盐碘均值明显低于调整前(2011年),其差异(u=17.87,P<0.01)。食盐碘含量标准调整后,儿童尿碘中位数及尿碘浓度各频数分布比例有所下降(P>0.05),尿碘中位数由调整前的371.5μg/L降至310μg/L,儿童尿碘浓度>100μg/L的由调整前的96.7%降至94.0%,儿童尿碘过量比例由调整前的60.0%降至53.5%。结论需要继续加强碘营养监测,探索保障儿童适宜碘营养的食盐碘含量,并加大健康教育,根据个人需要,科学选择食用碘盐,以防碘摄入过量或不足。
Objective To understand iodine nutrition status of children after adjustment of iodine content in salt so as to provide a reliable basis for scientific iodine supplementation and to consolidate the prevention and control of iodine deficiency disorders in this area. Methods The iodine nutrition monitoring results of school-age children aged 8 ~ 10 years in the Quanshan District of Xuzhou City were compared before the standard iodine content of the national salt (2011) was adjusted (2016). Results The mean of salt-iodine detected in the national salt iodine content standard (2016) was significantly lower than that before adjustment (2011), with a difference of (u = 17.87, P <0.01). After adjusting for iodine in salt, the frequency distribution of urinary iodine and urinary iodine in children decreased slightly (P> 0.05), and the median urinary iodine decreased from 371.5μg / L before adjustment to 310μg / L, while children The urinary iodine concentration> 100μg / L decreased from 96.7% before adjustment to 94.0%, and the urinary iodine excess rate in children dropped from 60.0% before adjustment to 53.5%. Conclusion The monitoring of iodine nutrition needs to be continued to explore the iodine content of salt for children’s protection of iodine nutrition and to increase health education. According to individual needs, iodized salt should be scientifically selected to prevent excessive or insufficient iodine intake.