Hearing Threshold of Children with Hearing Screening-Passed in Day Care Center and Speech-Language Pathology Clinic

Abstract

각각 관찰되었다. 주파수 사이에는 500㎐와 1,000, 2,000, 4,000 ㎐(p=.000), 1,000과 2,000, 4,000 ㎐(p=.000)로 유의한 차이가 있었다. ABSTRACTResponded threshold level in hearing screening depends on the noise level of test surroundings, physiological characteristics of hearing organs, excessive sound source exposures, and so on. The purpose of this study is to obtain the basic information of hearing threshold level at each frequencies in children with passed hearing screening. Subjects were 110 children, aged were from 3.3 to 16.3 (9.01±2.52), who were at private speech language pathological clinics and daycare centers. Methods of Hearing screening were tympanometry, acoustic reflex threshold, automated otoacoustic emission, and pure tone screening. The subjects were in normal criteria of hearing screening. The differences of hearing threshold among ages and frequencies were measured by means of repeated measures ANOVA. The mean of hearing thresholds level was observed 16±6. 49, 11.5±4.79, 6.86±4.99, 5.95±6.65 ㏈ HL in the right ear and 15.68±6.01, 9.95±5.24, 5.72±5.21, 5.63±7.04 ㏈ HL in the left ear, in frequency of 500, 1,000, 2,000, 4,000 ㎐ respectively. There was a significant difference between 500 and 1,000, 2,000, 4,000 ㎐ (p=.000), between 1,000 and 2,000, 4,000 ㎐ (p=.000).