When Nobue Nakabori, assistant professor of the Faculty of Nursing, Tsuruga Nursing University, and Michikazu Sekine, a professor of medical science at the University of Toyama, analyzed the results of the Toyama Prefecture Dementia Elderly Fact-finding Survey, cardiovascular disease in the elderly was at risk of hearing loss. I found out to raise it.
The Toyama Prefecture Dementia Elderly Survey was conducted by Toyama Prefecture, and 65 people were randomly selected from elderly people aged 1,537 and over in Toyama Prefecture.Of the 1,303 people who consented to the survey, 1,039 people with dementia and incomplete responses were included in the analysis.
According to the report, 12.1 people (126%) had hearing loss, and those with a history of cardiovascular disease such as myocardial infarction and angina had a statistically significant increase in risk index of 1.86. rice field.The number of strokes increased to 1.57, but it could not be determined to be a significant increase.No increase in hypertension, dyslipidemia, or diabetes was observed.
Sound is sensed by hair cells in the cochlea of the inner ear, transmitted from the auditory nerve to the cerebrum, and recognized as sound.The research group believes that if blood flow is impaired due to cardiovascular disease, the ability to detect and recognize sound will decline, resulting in deafness.
In addition, it was confirmed that the risk index of deafness tends to increase as the educational history becomes shorter.People with less than 10 years of education are at about three times the risk of those with more than 6 years of education.The research group believes that a short educational history is likely to lead to unfavorable lifestyles such as smoking and various lifestyle-related diseases, which may have increased the risk of deafness.
Paper information:[BMC Geriatrics] Association between self-reported hearing loss and low socioeconomic status in Japan: Findings from the Toyama Dementia Survey
