Hearing Impairment and Prevalence of Mild Cognitive Impairment in Japan: Baseline Data From the Aidai Cohort Study in Yawatahama and Uchiko

Objectives: Hearing impairment (HI) in midlife may increase the risk of dementia. However, epidemiological research on the association between HI and mild cognitive impairment (MCI) is very limited. Design: The present cross-sectional study investigated the relationship between HI and MCI using baseline data from the Aidai Cohort Study. Study subjects were 995 Japanese adults aged 36 to 84 years. We used the audiometric definition of HI adopted by the World Health Organization, which identifies the speech-frequency pure-tone average hearing thresholds at 0.5, 1, 2, and 4 kHz tones. HI was defined as present when pure-tone average was>25 dB HL in the better hearing ear. MCI was defined as being present when a subject had a Japanese version of the Montreal Cognitive Assessment score of
Source: Ear and Hearing - Category: Audiology Tags: Research Article Source Type: research