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碘缺乏障碍(Iodine deficiency disodrers TDD)概念的提出,使人们从缺碘的角度来观察它对人类多种多样的损害。虽然已有人证实地方性克汀病患者中90％以上有不同程度的听力障碍但对于有轻度智力落后的边缘病人来说听力障碍程度如何?目前报导尚少,本文研究就是基于此目的而进行的。 1 检查对象:实验组为缺碘地区369名7～14岁的学龄儿童,来自承德地区丰宁、宽城和隆化县的三个乡的中小学生。
Iodine deficiency disorders (Iodine deficiency disodrers TDD) concept put forward, so that people from the perspective of iodine deficiency to observe it a variety of human damage. Although 90% of endemic cretinism patients have been confirmed to have varying degrees of hearing impairment, but for the marginal patients with mild mental retardation how the level of hearing loss is still low, the study is carried out for this purpose of. 1 Subjects: The experimental group was 369 school-aged children aged 7-14 years in areas lacking iodine. Primary and secondary school students from three townships in Fengning, Kuancheng and Longhua counties in Chengde district were enrolled.