Introduction: It has been shown that low levels of pigmentation increase susceptibility to noise-induced hearing loss in humans. For this reason, white populations develop more pronounced noise- induced hearing loss in comparison to black populations. Similarly, blue-eyed individuals exhibit greater temporary threshold shift than brown-eyed subjects; still, no strong correlation has been veri...

introduction: some of the studies have shown that ra (rheumatoid arthritis) may cause hearing disorders. these disorders can result in problems later in life, so survey of correlation between rheumatoid arthritis and hearing disorders is important . methods: this was a case-control study which has done from december 2004 to august 2006 at shaheed sadoughi hospital in yazd. in this study, 50 rhe...

background: ototoxic chemicals can impair the sense of hearing and balance. in the past decades, the ototoxicity of solvents and their interaction with noise have become evident. this study has been carried out in the shoe manufacturing factory in tehran (iran) with the aim of evaluating the combined effects of noise and toluene on the workers' hearing. materials and methods: this cross-se...

Objectives: The prevalence of consanguineous marriage is about 30 % in Iran and this can increase the probability of incidence of genetic impairments such as hearing impairments. Hearing impairment in comparison with other hereditary disorders is the most incident. The purpose of this survey is to identify the prevalence of consanguinity among the parents of sensoryneural hearing impaired stude...

the study was conducted on a group of 90 traffic policemen aged 20-50 years and working in and around patiala district to assess their knowledge, attitude, and practices toward the ill effects caused by traffic noise on health. the subjects were required to fill up a questionnaire regarding their self‑assessment of hearing ability, noise‑related attitudes, and the use of personal protective equ...