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目的了解和掌握杭州市人群碘营养现况,指导市民科学补碘,优化杭州市人群碘营养状况。方法在全市范围内12个区、县(市)各随机抽取3个调查点,各调查点随机抽取100户居民,采集家庭盐样及尿样进行盐碘和尿碘的检测。采用硫代硫酸钠法测定盐碘;酸消化砷-铈接触法检测尿碘。结果全市共检测盐碘3 604份,盐碘中位数为29.60mg/kg,碘盐覆盖率为95.73%,碘盐合格率为97.42%,合格碘盐食用率为93.26%;尿样12 805份,尿碘中位数为175.00μg/L,其中城区、郊区和农村尿碘中位数分别为162.00μg/L、168.00μg/L和194.81μg/L,农村高于城区及郊区(χ2=209.746 3,P<0.000 1);男性尿碘中位数为182.00μg/L高于女性的168.62μg/L(χ2=12.6402,P=0.005 5);8岁以下、8～10岁儿童、育龄妇女和成人尿碘中位数分别为189.13μg/L、174.73μg/L、177.54μg/L和174.00μg/L,8岁以下尿碘水平高于其他三组人群(χ2=12.640 2,P=0.0055)。结论目前杭州市人群碘营养总体处于适宜水平,随着本市碘缺乏病的趋向消除,继续保持并优化杭州市人群碘营养状况显得尤为重要。
Objective To understand and master the status of iodine nutrition in Hangzhou population, guide citizens in scientific iodization and optimize the iodine nutrition status in Hangzhou. Methods Three survey sites were randomly selected from 12 districts and counties (cities) in the city and 100 households were randomly selected from all survey sites. Salt and urine iodine were collected from families for salt and urine samples. Salt iodine was determined by sodium thiosulfate method; urinary iodine was detected by acid digestion arsenic - cerium contact method. Results There were 3 604 salt iodine, 29.60 mg / kg iodized salt, 95.73% iodized salt, 97.42% iodized salt and 93.26% iodized salt. The urine sample was 12 805 The median urinary iodine was 175.00μg / L. The median urinary iodine in urban, suburban and rural areas were 162.00μg / L, 168.00μg / L and 194.81μg / L, respectively. The rural areas were higher than those in urban areas and suburbs (χ2 = 209.746 3, P <0.0001). The median urinary iodine was 182.00 μg / L for men and 168.62 μg / L for women (χ2 = 12.6402, P = 0.005 5) The median urinary iodine of women and adults were 189.13μg / L, 174.73μg / L, 177.54μg / L and 174.00μg / L, respectively. The urinary iodine under 8 years old was higher than the other three groups (χ2 = 12.6402, P = 0.0055). Conclusion At present, the population of iodine nutrition in Hangzhou is generally at an appropriate level. With the elimination of iodine deficiency disorders in this city, it is particularly important to continue to maintain and optimize the iodine nutrition status in Hangzhou.