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本文使用日本MST-1N型听力计,于1989年9～10月间对新疆和田地区181名7～14岁学童进行了双耳纯音气导听力测定。测定对象共分4组(处于不同海拔高度上的3组缺碘学童及1组补碘对照组学童)。除测定听力外,还测定了智商、甲状腺吸~(131)I率、T_3、T_4、TSH、精神运动发育和骨龄等项指标。结果表明,缺碘地区学童平均听阈显著高于补碘对照组;听力损失在高频(8000Hz)及低频(1000Hz)最为严重;平均听阈与下列因素有显著负相关关系存在:海拔高度、性别、身高、体重、身高体重指数、敲击试验及智商。提示缺碘造成的听力障碍主要为高频(8000Hz)及低频(1000Hz)。采取补碘措施后,听力可有部分恢复,但不能完全恢复。平均听阈与甲状腺吸~(131)I率、T_3、T_4、TSH等指标无显著相关,故是一个较为独立的指标,把它作为亚临床克汀病的辅助诊断指标是合适的。
In this paper, Japan MST-1N-type audiometer, from September to October 1989 in Hetian area, 181 children aged 7 to 14 years were binaural pure tone audiometry. The subjects were divided into 4 groups (three groups of iodine-deficient children and one group of iodine-supplemented group of school children at different altitudes). In addition to the determination of hearing, IQ, thyroid suction ~ (131) I rate, T_3, T_4, TSH, psychomotor development and bone age were also measured. The results showed that the average hearing threshold of school children in iodine deficient area was significantly higher than that of iodine supplementation group; the hearing loss was the most serious at high frequency (8000Hz) and low frequency (1000Hz); mean hearing threshold was negatively correlated with the following factors: altitude, sex, Height, weight, height and body mass index, tapping test and IQ. Prompted hearing loss caused by iodine deficiency mainly for high-frequency (8000Hz) and low frequency (1000Hz). After taking measures to supplement iodine, the hearing may have partially recovered, but not completely recovered. The average hearing threshold and thyroid suction ~ (131) I rate, T_3, T_4, TSH and other indicators was not significantly correlated, it is a more independent indicator, as a subclinical cretinism auxiliary diagnostic indicators is appropriate.