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目的了解辽宁省居民碘营养状况,为制订碘缺乏病预防控制策略提供科学依据。方法在辽宁省10个沿海县区和3个内陆县区各随机抽取1个乡镇(街道),随机抽取30户居民,采用3 d称量法调查每个家庭所有成员的摄盐量;随机抽取8~10岁儿童50人,18~50岁成人、怀孕和哺乳妇女各30人采集1次随意尿样和居民的饮用水水样,检测尿样、水样的碘含量。结果 13县区调查点水碘水平为(3.7±3.2)μg/L,居民碘盐覆盖率为96.4%(376/389),合格碘盐食用率为95.4%(372/389),食盐碘含量中位数为30.5 mg/kg;居民尿碘中位数为202.9μg/L,其中,儿童、成人、孕妇和哺乳妇女的中位数分别为213.9、228.1、188.6和180.7μg/L;居民日均摄盐量为9.3 g,摄盐量<6 g居民占27.2%(106/390)。结论现行碘盐浓度下,居民碘营养基本处于适宜水平,应继续食用加碘盐,但其加碘量尚有微量的下调空间。
Objective To understand the iodine nutrition status of residents in Liaoning Province and provide a scientific basis for the prevention and control strategies of iodine deficiency disorders. Methods One township (street) was randomly selected from 10 coastal counties and three inland counties in Liaoning Province. Thirty households were randomly selected and the salt intake of all members of each family was investigated by 3-day weighed method. Randomized 50 children from 8 to 10 years old, 18 to 50 years old adults, 30 pregnant and lactating women were collected one free sample of urine and residents of drinking water samples, urine samples, water samples of iodine content. Results The iodine level of the survey counties in the 13 counties was (3.7 ± 3.2) μg / L, the iodized salt coverage rate was 96.4% (376/389), the qualified iodized salt consumption rate was 95.4% (372/389), the iodine content Median urinary iodine was 202.9 μg / L, with a median of 213.9,228.1,188.6 and 180.7 μg / L for children, adults, pregnant women and lactating women, respectively. Residents Day Average salt intake was 9.3 g, salt intake <6 g inhabitants accounted for 27.2% (106/390). Conclusion Under the current iodized salt concentration, the iodine nutrition of residents is basically at an appropriate level. Iodized salt should continue to be consumed, but there is still a slight downward adjustment of iodine intake.