목적: Despite the high prevalence of hearing impairment in the elderly, the rate of hearing aid use is still low. The objectives of this study were to report the nation-wide prevalence of hearing aid use in the Korean population and to determine the associated factors with hearing aid use using a nationally representative data set. 방법:We obtained data from the 2010-2012 Korea National Health and Nutrition Examination Surveys, which were cross-sectional surveys of the civilian, non-institutionalized population of the Republic of Korea aged 40 years and older (N = 12,709). A field survey team performed interviews as well as physical examinations. Hearing aid use was assessed using an interviewer-administered questionnaire, and pure-tone audiometry was administered for all participants in a sound-attenuating booth. Prevalence of hearing aid use was calculated in participants who reported significant perceived hearing loss and who have bilateral hearing thresholds of greater than 40 dB hearing level. Multivariable analyses were used to examine the associated factors with hearing aid use. 결과:The prevalence of hearing aid use was 12.6% (95% CI 9.0% - 16.2%) in South Korea. Increased hearing threshold (OR 1.05, 95% CI 1.03 - 1.07), significant perceived hearing loss (OR 10.73, 95% CI 4.52 - 25.46), annoying tinnitus (OR 3.30, 95% CI 1.61 6.74), balance problems (OR 0.39, 95% CI 0.18 0.86), and myopia (OR 0.30, 95% CI 0.12 0.76) were associated factors of hearing aid use. 결론:The prevalence of hearing aid use in Korea is relatively low. Finding relevant factors of hearing aid use could provide further insight in setting up hearing-rehabilitation strategy for the elderly with significant hearing loss.