Difficulty hearing speech could be a risk factor for dementia

July 22, 2021

Hearing impairment affects around 1.5 billion individuals worldwide (World Health Organization), and there is growing evidence that this could increase the risk of dementia.A major component of hearing impairment is difficulty hearing speech in noisy environments (speech-in-noise hearing impairment).However, until now it was unclear whether difficulty hearing speech-in-noise was associated with developing dementia.Key results:Over 11 years of follow-up, 1,285 participants were identified as developing dementia based on hospital inpatient and death register records.Insufficient and poor speech-in-noise hearing were associated with a 61% and 91% increased risk of developing dementia, compared to normal speech-in-noise hearing, respectively.

The source of this news is from University of Oxford