보청기 착용 만족도를 측정하는 설문지의 특성 분석 연구

An Analysis Study of Features for Hearing Aid Satisfaction Questionnaires: Satisfaction with Amplification in Daily Life, Client Oriented Scale of Improvement, International Outcome Inventory for Hearing Aids

Purpose: This study was aimed to provide translated questionnaires in Korean including Satisfaction with Amplification in Daily Life(SADL), Client Oriented Scale of Improvement (COSI), and International Outcome Inventory for Hearing Aids (IOI-HA) and analyze their reliabilities and validities for measuring and improving hearing-aid satisfaction level in Korea. Methods: Fifty people who were fitted with their new hearing-aids participated (70.4 ± 12.4). All the participants answered Korean-IOI-HA and newly translated SADL and COSI in Korean to measure hearing aid satisfaction, when they visited the hearing-aid centers where they were fitted hearing-aids initially. The hearing-aid types were Completely In the Canal for 29, In The Canal for 10, and Receiver In the Canal for 11. Monaural and binaural users were 20 and 30, respectively. Out of fifty, fifteen performed test-retest measurements. Results: Translated SADL, COSI, and IOI-HA’s means and Cronbach’s alpha values were 4.76 and 0.83, 3.60 and 0.83, and 3.73 and 0.70. There was a significant correlation coefficient among three questionnaires. No significant difference according to hearing-aid types was found. A significant difference for the wearing manners between bilateral and unilateral hearing aids was found. The correlations between test and retest were 0.83 for SADL, 0.71 for COSI, and 0.74 for IOI-HI indicating good reliabilities. Conclusion: The translated versions of SADL, COSI and IOI-HA were validated as useful tools for measuring satisfaction of hearing-aids and the fitting in Korea. Using these questionnaires, better satisfaction level of hearing-aids in Korea could be provided in the future.