陕西是全国严重缺碘的省份之一,107个县(市、区)3480多万人口均受到威胁,现有地方性甲状腺肿病人30多万人,克汀病病人2万余人,智力低下者数十万人,严重影响人口素质和经济发展。消除碘缺乏病任重道远,存在着许多值得人们思考的问题。一是碘盐质量一路下滑。据调查,70年代末和80年代初陕西碘盐质量平均合格率在80%以上,1993年全省抽查碘盐质量平均合格率为54.55%,1994年合格率为37.8%,1995年合格率仅为24.71%,不少缺碘地区群众还 Shaanxi is one of the most severely iodized provinces in the country. Over 34.8 million people in 107 counties (cities and districts) are threatened. There are more than 300,000 endemic goitre patients, more than 20,000 cretinism patients, and mental retardation Hundreds of thousands of people have seriously affected the quality of the population and economic development. To eliminate iodine deficiency disorders, a long way to go, there are many worth thinking. First, the quality of iodized salt all the way down. According to the survey, in the late 1970s and early 1980s, the average passing rate of iodized salt in Shaanxi was above 80%. In 1993, the average passing rate of iodized salt in the province was 54.55%. The passing rate in 1994 was 37.8%. The passing rate in 1995 was only 24.71%, many iodine deficiency areas also