Kawell M E, Kopun J G, Stelmachowicz P G
Boys Town National Institute for Communication Disorders in Children, Omaha, Nebraska.
Ear Hear. 1988 Jun;9(3):133-6. doi: 10.1097/00003446-198806000-00005.
Loudness discomfort levels (LDLs) traditionally have been used to set the saturation sound pressure level (SSPL) or maximum output of a hearing aid. Many procedures have been used to obtain LDLs for adults; however, no systematic study has been conducted to determine if LDLs could be obtained reliably for children. In the present study, LDLs were measured on 20 hearing-impaired children aged 7 to 14 years using a modification of a procedure described by Hawkins, Walden, Montgomery, and Prosek (Ear Hear 1987; 8: 162-169). Test-retest reliability measures were obtained for 8 of the 20 children, and this modified procedure was found to provide reasonably reliable results. Data from the group of 20 children also were compared with similar data obtained from 20 hearing-impaired adults. These results revealed no systematic differences in LDLs between the two groups, suggesting no a priori reason to limit the maximum output of a hearing aid for a child in this age range below the levels that are appropriate for adults. Poor correlation between LDLs and hearing levels for both age groups indicate a need for determining LDLs on an individual basis whenever possible.
传统上，响度不适阈（LDLs）一直被用于设定助听器的饱和声压级（SSPL）或最大输出。已有多种方法用于获取成人的LDLs；然而，尚未进行系统研究以确定是否能可靠地获取儿童的LDLs。在本研究中，采用对Hawkins、Walden、Montgomery和Prosek所描述方法（《耳与听觉》1987年；8：162 - 169）的改良，对20名7至14岁的听力受损儿童进行了LDLs测量。对这20名儿童中的8名进行了重测信度测量，发现这种改良方法能提供较为可靠的结果。还将这20名儿童组的数据与从20名听力受损成人那里获得的类似数据进行了比较。这些结果显示两组之间的LDLs没有系统性差异，这表明没有先验理由将该年龄范围儿童助听器的最大输出限制在低于成人适用水平。两个年龄组的LDLs与听力水平之间的相关性都很差，这表明只要有可能，就需要基于个体情况来确定LDLs。
