目的 掌握西藏自治区碘缺乏病防治工作现况,提出有针对性的防治对策,杜绝新发地方性克汀病(简称地克病)的发生.方法 2007年4-8月在拉萨、山南、林芝、昌都、日喀则5个地区的16个县,搜索所有1997年1月1日以后出生的疑似克汀病患者,在每个乡选择2个村,每个村选取60名8～10岁儿童,采用触诊法和B超法进行甲状腺检查、尿碘测定、智商测查;每个村选择30户育龄妇女进行尿碘测定,并对其家中食盐进行半定量检测.结果 调查未发现新发克汀病患者.触诊法检查,8～10岁儿童甲状腺肿大(简称甲肿)率为4.5%(257/5680);B超法检查,甲肿率为4.7%(258/5433).8～10岁儿童尿碘中位数为159.4μg/L,智商为78.3±14.5;育龄妇女的尿碘中位数为70.2μg/L;碘盐覆盖率为52.8%.结论 儿童甲肿率、尿碘水平达到了消除碘缺乏病标准;但是儿童智商偏低,育龄妇女尿碘水平较低,碘盐覆盖率较低,碘缺乏病的防治工作需要加强.%Objective To propose prevention and control strategy against iodine deficiency disorders to prevent new cases of endemic cretinism from occurring. Methods In April and August 2007, all the suspected cretinism patients born after the first of January, 1997 were searched for in 16 counties from Lhasa, Shannan, Nyingchi, Qamdo and Xigaze. Meanwhile, 60 children aged 8-10 years were selected in each of the two rural villages of each county chosen. Goiter was examined using palpation and B-ultrasound, urinary iodine was determined, inteligence quotient(IQ) was tested; 30 women of childbearing age from each village chosen underwent urinary iodine test and household salt semi-quantitative detection. Results No new cases of endemic cretinism had been found; Palpation identified goiter at 4.5% (257/5680) in children, B-ultrasound revealed a rate of 4.7% (258/5433). Median of urinary iodine was 159.4 μg/L, the averaged IQ was 78.3±14.5; women of childbearing age had a median urinary iodine of 70.2 μg/L. The coverage rate of iodized salt was 52.8%. Conclusions Goiter rate in children, urinary iodine level meet the standard set for the elimination of iodine deficiency disorders; however, the low IQ children, low coverage of iodized salt and the level of urinary iodine in women of childbearing age are less than desirable. Iodine deficiency disorders prevention and control need to be strengthened.
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