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目的了解ＩＤＤ病区供应碘盐后出生的不同智商水平儿童听力状况和轻度智力落后儿童听力损伤程度。方法用 ＣＲＴ－Ｃ２图册和 ＣＲＴ－ＲＣ２测验、判定 ７－ １４岁儿童智商，用纯音诊断测听仪测儿童听力。结果 ＩＱ５０－６９、ＩＱ７０－ ７９、ＩＱ８０－ １１９三组儿童听力减退分别为 ４３．７％、１７．３％、２．２％，ＩＱ≥１２０组儿童听力正常。轻度智力落后儿童中的 ＩＱ５０－５９与 ＩＱ６０－ ６９两部分儿童听力减退率分别为 ５４．３％、３５．５％，轻度和中度听力减退率分别占听力损伤人数的９５．７％和４．３％。结论碘盐预防后出生儿童的听力与智力水平密切相关，轻度智力落后组儿童的听力水平显著低于同批智力水平较高组儿童。
Objective To understand the hearing status of children with different IQ levels and the degree of hearing impairment in children with mild mental retardation after iodized salt supply in IDD ward. Methods CRT-C2 atlas and CRT-RC2 test were used to determine the IQ of children aged 7-14, and the audiometry was used to measure the hearing of children. Results The hearing loss of IQ50-69, IQ70-79 and IQ80-119 children were 43.7%, 17.3% and 2.2% respectively, and the hearing was normal in IQ≥120 children. The hearing loss rates of IQ50-59 and IQ60-69 in children with mild mental retardation were 54.3% and 35.5% respectively, and mild and moderate hearing loss rates accounted for 95.7% And 4.3%. Conclusion The hearing and intelligence levels of children born after iodized salt prevention are closely related. The hearing ability of children with mild mental retardation is significantly lower than that of children with higher intelligence level.