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目的评估与掌握目前浙江省人群碘营养水平现状。方法全省90个县(市、区)按2007年颁布的《全国碘缺乏病监测方案》进行随机碘盐监测,盐中碘含量采用直接滴定法,川盐及其他强化食用盐采用仲裁法(GB/T 13025.7-1999);同时在上述调查县范围内按东、西、南、北、中随机选取5所小学,抽取8～10岁儿童进行尿碘含量测定,测定方法采用砷铈催化分光光度测定法。结果全省抽取8～10岁儿童尿样8 549份,尿碘中位数198.00μg/L,尿碘含量<100μg/L占检测数的13.15%;100～200μg/L的占检测数的37.48%;200～300μg/L的占检测数的28.78%;>300μg/L的占检测数的20.60%;不同地区尿碘水平均处于适宜或充足水平,且差异无统计学意义(P>0.005);采集盐样26 273份,盐碘中位数为28.10 mg/kg,碘盐覆盖率为96.26%,碘盐合格率为97.25%,合格碘盐食用率为93.60%;不同地区中除温州市、舟山市碘盐覆盖率均高于95%、合格碘盐食用率均高于90%。结论儿童尿碘中位数和碘盐覆盖率及合格碘盐食用率总体达到消除碘缺乏病标准,全省总体碘营养水平处在适宜水平。
Objective To evaluate and master the current status of iodine nutrition in Zhejiang Province. Methods Ninety counties (cities and districts) in the province were randomized to iodized salt monitoring according to the “National Monitoring Scheme for Iodine Deficiency Disorders” issued in 2007. The iodine content in salt was determined by direct titration and the salt and other fortified salt were arbitrated GB / T 13025.7-1999). At the same time, five primary schools were randomly selected from the east, west, south, north and north of the survey counties, urine samples were collected from children aged 8 to 10 to determine the urinary iodine content. The determination method adopted arsenic- Photometry. Results The province collected 8 549 urine samples from 8 to 10 years old children with urinary iodine median of 198.00 μg / L, urinary iodine content <100 μg / L accounting for 13.15% of the total number of detections, and 100-200 μg / L accounting for 37.48 %; 200 ~ 300μg / L accounted for 28.78% of the number of detection;> 300μg / L accounted for 20.60% of the number of detection; Urinary iodine levels in different areas are at an appropriate or adequate level, and the difference was not statistically significant (P> 0.005) ; 26 273 salt samples were collected, the median of salt iodine was 28.10 mg / kg, the coverage of iodized salt was 96.26%, the pass rate of iodized salt was 97.25% and the eating rate of qualified iodized salt was 93.60% , Iodized salt coverage in Zhoushan City was higher than 95%, qualified iodized salt consumption rates were higher than 90%. Conclusion The urinary iodine median and iodized salt coverage rate and the eligible iodine salt consumption rate in children generally reach the standard of eliminating iodine deficiency deficiency. The iodine nutrition level in the whole province is at an appropriate level.