title: Survey of hearing disorders in an urban population in Rondonia, Northern Brazil.
abstract: OBJECTIVE
  To identify the prevalence of hearing loss for the population in the urban area.
  
  
  METHODS
  A cross-sectional household survey based on the World Health Organization Ear and Hearing Disorders Survey Protocol was conducted in 298 households in the urban area of Monte Negro, Rondonia, Northern Brazil, from 2005 to 2007. Ear examinations, behavioral audiometry and pure tone audiometry were conducted on 577 individuals.
  
  
  RESULTS
  The results showed that 3.8% (95%CI 2.17;5.45) of population were classified in the disabling hearing impairment category. The prevalence of moderate hearing impairment was 3.4%; severe impairment was 0.4%; and profound hearing impairment was not found.
  
  
  CONCLUSIONS
  The impairing hearing loss prevalence found in this study is within of the international prevalence for this level of hearing loss and smaller than observed in a previous study in the South region of Brazil.
authors.affiliation: Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Fonoaudiologia e Audiologia, BauruSão PauloBrazil.
authors.forename: Maria Cecilia
authors.initials: MC
authors.lastname: Bevilacqua
authors.forename: Marcos Roberto
authors.initials: MR
authors.lastname: Banhara
authors.forename: Ariádnes Nóbrega de
authors.initials: AN
authors.lastname: Oliveira
authors.forename: Adriane Lima Mortari
authors.initials: AL
authors.lastname: Moret
authors.forename: Kátia de Freitas
authors.initials: Kde F
authors.lastname: Alvarenga
authors.forename: Magali de Lourdes
authors.initials: Mde L
authors.lastname: Caldana
authors.forename: Luís Marcelo Aranha
authors.initials: LM
authors.lastname: Camargo
authors.forename: Orozimbo Alves
authors.initials: OA
authors.lastname: Costa
authors.forename: José Roberto de Magalhães
authors.initials: JR
authors.lastname: Bastos
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D001938:Brazil / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006311:Hearing Disorders / Q000453:epidemiology*; D034381:Hearing Loss / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D017678:Sex Distribution; D014505:Urban Population; D055815:Young Adult