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目的 对从 1985年起开始供应碘盐的 10个碘缺乏病流行县的碘缺乏病防治进程进行评估。方法 1997年由县级机构采用PPS抽样进行自查自评 ,1997～ 1998年由省政府多部门组成评估组采用LQAS法进行复核。结果 县级常规监测资料表明 ,学龄儿童甲状腺肿大率由 1983年的 41 9%逐年下降至 1997年的 3 9%。 1985年后人群尿碘中位数一直保持在 10 0 μg/L以上 ,1993～ 1997年的居民户合格碘盐 (碘含量在 2 0mg/kg以上 )食用率在 90 %以上。省级评估组的复核结果证实了县级评估结果。结论 这 10个县已经建立可持续消除碘缺乏病的运行机制 ,由于盐碘变异程度较大 ,有必要在生产环节加强质量控制
Objective To assess the progress of prevention and treatment of iodine deficiency disorders in 10 iodine-deficiency endemic counties that began to supply iodized salt in 1985. Methods In 1997, county-level agencies adopted PPS sampling for self-assessment and self-assessment. From 1997 to 1998, the assessment team of the multi-departmental government was reviewed by LQAS. Results County-level routine monitoring data showed that the rate of goiter in school-age children dropped from 41 9% in 1983 to 39% in 1997. After 1985, the urinary iodine median of the population remained above 10 0 μg / L. From 1993 to 1997, the household iodine salt (iodine content above 20 mg / kg) had a consumption rate above 90%. The review result of the provincial assessment team confirmed the county-level assessment results. Conclusion The 10 counties have established a sustainable operation mechanism to eliminate iodine deficiency disorders. Due to the large degree of salt iodine variation, it is necessary to strengthen quality control in the production process