A new study has found that being male and having a noisy job could increase the risk of hearing impairment and cardiovascular diseases in middle-aged adults.
`The severity of this condition has been shown to be associated with a poorer quality of life, communication difficulties, impaired activities of daily living, dementia, and cognitive dysfunction,` write the authors from the University of Wisconsin School of Medicine and Public Health, Madison.
Scott D. Nash and colleagues studied 3,285 participants ranging in age from 21 to 84 years, with an average age of 49. The researchers evaluated hearing impairment as a pure-tone average greater than 25 decibels hearing level in either ear, and also measured word recognition at different sound levels and with male and female voices.
Results showed prevalence of hearing impairment was 14.1 percent and the average word recognition in quiet was 89.6 percent, but 63.5 percent in competing message environment.
Source:www.sify.com(25-02-2011)
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