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KMID : 0858620050090010065
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Korean Journal of Audiology
2005 Volume.9 No. 1 p.65 ~ p.76
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International Outcome Inventory for Hearing Aids(IOI-HA)：Korean Version
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Lee Min-Ah
Ahn Jung-Ho
Kim Jin-Sook
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Abstract
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International Outcome Inventory for Hearing Aids (IOI-HA) is a seven-item ques-tionnaire designed to evaluate suitably for the effectiveness of hearing aid treat-ments. The inventory is a ’universal’ outcome measure which is intended as a tool to pool and compare data across studies and countries. This study presents data of International Outcome Inventory for Hearing Aids (IOI-HA) in the Korean ver-sion which was interpreted by Jinsook Kim. The purpose of this study was to confirm what the position of Korean rehabilitation after hearing aid fitting is internationally and to identify whether we can use korean version of IOI-HA in aural rehabilitation clinically. Responses of 106 hearing aid users were analyzed. Each item was from 1 to 5 for the responses from left (worst) to right (best) respectively. Thus, a higher score is indicative of a better outcome. The results were as follows. All the mean scores fall between 3.49 and 4.41 somewhat above the middle of the scoring range. This seems to be indicative of the subject group’s relative satisfaction with their fit-ting outcomes on the whole. Inter-item correlations range from negligible (0.12) to moderately strong (0.77). Factor analysis resulted in the extraction of two factors. One of which could be defined as a ’satisfaction’ factor and the other a ’residual problems’ factor. Cronbach’s alpha coefficients were 0.83 and 0.86 for Factor 1 and Factor 2 which means high internal consistency of the factors. There was no statistically significant effect on periods of hearing aid fitted on IOI-HA mean (p<0.05). There was no statistically significant effect between unilaterally and bilaterally fitted subjects on IOI-HA mean (p<0.05). International Outcome Inventory in Korean showed similarity with U.S.A. and Netherlands, but slightly lower score than U.K, and higher score than Egypt. In the future more subjects should be included for bet-ter analysis. And test conditions such as types, makers, and different fitting methods of hearing aids should also be considered for better interpretation of the scores. The comparison of the other self-report questionnaires such as KHHIE would be a good estimation for applying in clinical settings. Finally, test-retest evaluation is advised for improving reliability for IOI-HA
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KEYWORD
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International outcome inventory for hearing aids (IOI-HA)
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