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目的调查沧州市水源性高碘的分布及高碘对人体的危害,为划定高碘地区或病区并制定防治措施提供科学依据。方法在沧州市所辖的18个县(市、区)中,以乡(镇)为单位,按东、西、南、北、中5个方位选取5个村,测定每个村的饮用水碘含量,采样数量依水源数而定。在确定的高碘乡中随机抽取10个乡,对乡中心小学200名8～10岁学生进行甲状腺触诊,并采集其中100名学生的即时尿样测定其碘含量。结果180个乡中水碘中位数高于150μg/L的乡(镇)有64个,占总乡数的35.6%,分布于沧州市12个县(市、区),高碘受威胁人口数为1 978 590。触诊检查了10个乡2 082名8～10岁学生甲状腺,甲状腺肿大率为9.46%。10个乡学生尿碘中位数范围为249.2～1 294.2μg/L。结论沧州市高碘分布广泛,应在高碘地区停止碘盐供应或寻找适碘水源以减少高碘的危害。
Objective To investigate the distribution of high water iodine in Cangzhou City and the harm of high iodine to the human body, and to provide a scientific basis for delineating high iodine area or ward and making prevention and cure measures. Methods Five villages were selected from five locations in East, West, South, North and Central China in 18 counties (cities and districts) under the jurisdiction of Cangzhou. The drinking water of each village was determined Iodine content, the number of samples according to the number of water sources. A total of 10 townships were randomly selected from high-iodine townships identified. Thyroid palpation was performed on 200 students from 8 to 10 years old in the township primary schools. Instant urine samples of 100 students were collected to determine the iodine content. Results There were 64 townships (towns) with a median of more than 150 μg / L in 180 townships, accounting for 35.6% of the total number of townships in 12 counties (cities and districts) in Cangzhou, The number is 1 978 590. Palpation examination of 10 townships 2 082 8 to 10-year-old students thyroid, goiter rate was 9.46%. The median urinary iodine of 10 rural students ranged from 249.2 to 1294.2 μg / L. Conclusion The distribution of high iodine in Cangzhou City should be stopped in high iodine area or to find suitable iodine source to reduce the harm of high iodine.