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Association between a High-Potassium Diet and Hearing Thresholds in the Korean Adult Population.


ABSTRACT: The aim of this study was to determine and evaluate the association between potassium intake and hearing thresholds in the Korean adult population. Data from the Korean National Health and Nutrition Examination Survey were analyzed. Participants were divided into tertiles on the basis of their potassium intake as follows: low, middle, and high. Pure-tone audiometry was performed using an automated audiometer. We calculated as the average threshold at the low-frequency pure-tone average (0.5 and 1?kHz), mid-frequency pure-tone average (2 and 3?kHz), and high-frequency pure-tone average (4 and 6?kHz). The average hearing threshold (AHT) was calculated as the pure-tone average of the thresholds at 0.5~3?kHz. Hearing loss (HL) was defined as an AHT of >40?dB in the better ear. There were 1975 participants each in the low, middle, and high tertile groups. The four different average hearing thresholds significantly decreased with an increase in the potassium intake tertile. Multivariate analysis revealed that the four different average hearing thresholds were significantly lower in the high tertile group than in the other two groups. In addition, univariate and multivariate linear regression analyses showed that the potassium intake level was inversely associated with each of the four different average hearing thresholds. Analyses of participants matched based on propensity scores and participants not matched based on propensity scores yielded similar results. The results of this study suggest that high potassium intake levels were associated with a lower prevalence of HL and lower hearing thresholds in the Korean adult population.

SUBMITTER: Jung DJ 

PROVIDER: S-EPMC6609769 | BioStudies | 2019-01-01

REPOSITORIES: biostudies

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