辽宁省妊娠妇女碘营养状况评估

目的评估妊娠妇女碘营养状况,为适时调整妊娠妇女碘缺乏危害预防控制策略提供依据。方法2016~2019年分别在辽宁省辖区县(区)按东、西、南、北、中五个地理方位抽取5个乡镇(街道)妊娠妇女100人,采集尿样、盐样及居住地自来水厂水样,检测尿碘、盐碘和水碘,计算尿碘中位数和妊娠妇女饮水、食盐来源膳食碘摄入量,评估妊娠妇女尿碘和摄碘水平。结果36500名食用碘盐妊娠妇女尿碘中位数141.4μg/L,处于碘缺乏水平;碘摄入量中位数248.8μg/d,1.6%妊娠妇女的摄碘量

Evaluation of iodine nutritional status of pregnant women in different water iodine areas

Objective To evaluate the iodine nutritional status of pregnant women in different iodine areas,provide basis for adjustment of prevention and control strategies of iodine deficiency in pregnant women.Methods From 2016 to 2019,100 pregnant women were sampled respectively every year from 5 township( communities) in the counties of Liaoning Province.Urine samples,salt samples and water samples from waterworks in residential areas were collected to detect urine iodine,salt iodine and water iodine.And deleted some people who lived in without centralized water supply community and lacked anyone data of salt iodine,urine iodine and water iodine. Calculate the median urinary iodine and the dietary iodine intake from drinking water and salt sources of pregnant women,to evaluate the iodine nutrition status of pregnant women and the appropriate amount of iodized salt.Results The average salt iodine of 36 500 pregnant women was 24.3 mg/kg,the median urine iodine was 141.4 μg/L,the median dietary iodine intake was 248. 82 μg/d,the urine iodine intake of pregnant women was in iodine deficiency level,68. 1% of pregnant women’s dietary iodine intake were in the safe range between RNI and UL,1.6% of pregnant women were lower than EAR and 31.9% of pregnant women were lower than RNI.The pregnant women were at risk for iodine deficiency. Conclusion Pregnant women in iodine deficiency area and suitable iodine area should eat iodized salt.It is very important to select the appropriate iodized salt according to the iodine level of external environment,salt intake,dietary iodine intake and urine iodine.