An assessment of IDD prevalence has now been made in 106 developing countries with a population of over one million people where IDD is recognized to be a public health problem, or would be one, if salt iodization programmes ceased.

• 106个人口在100万以上的发展中国家对碘缺乏症的流行情况进行了评估，在这些国家中，缺碘已成为公共健康问题，至少是如果中止食盐加碘计划，缺碘将在这些国家中成为公共健康问题。