title: Low and high frequency tonal threshold audiometry: comparing hearing thresholds between smokers and non-smokers.
abstract: Cigarette smoking can cause many potentially fatal diseases and worsen others. Numerous studies have shown the relationship between smoking and hearing loss. However, the increase in auditory threshold in high frequency arising from smoking has been very little described.
  
  
  OBJECTIVE
  to compare low and high frequency auditory thresholds among a group of smoking and non-smoking male individuals between 18 and 40 years.
  
  
  METHODS
  Cross-sectional.
  
  
  METHODS
  by means of low and high frequency tonal threshold audiometry we studied 30 male individuals between 18 and 40 years and 30 non-smokers of matching age and gender.
  
  
  RESULTS
  auditory thresholds were different between smokers and non-smokers, being worse in the former. Although within normal ranges, auditory thresholds in low frequencies were higher among smokers. In high frequencies we noticed a marked increase in auditory thresholds among smokers.
  
  
  CONCLUSIONS
  we found statistically significant difference in auditory thresholds in low and high frequencies, among young male individuals, smokers and non-smokers, being worse in the former.
authors.affiliation: Graduate Studies in Medicine, General Surgery, Otorhinolaryngology , Federal University of Rio de Janeiro, UFRJ, ENT.
authors.forename: Daniela Cecílio Capra Marques de
authors.initials: DC
authors.lastname: Oliveira
authors.forename: Marco Antonio de Melo Tavares de
authors.initials: MA
authors.lastname: Lima
mesh_terms: D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold / Q000502:physiology*; D003430:Cross-Sectional Studies; D006316:Hearing Loss, High-Frequency / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D012907:Smoking / Q000009:adverse effects* / Q000503:physiopathology; D055815:Young Adult