title: Sensorineural hearing loss in high school teenagers in Mexico City and its relationship with recreational noise.
abstract: The aim of this study was to measure the frequency of hearing loss in a sample of typical public high-school students exposed to recreational noise, and determine associated risk factors. The sample was made up of 214 teenagers from a high-school in Mexico City; subjects were selected randomly per strata. We applied a questionnaire to identify risk factors for hearing loss and performed a battery of audiologic tests consisting of otoscopy, tympanometry, and pure-tone audiometry. The mean age of the sample was 16 +/- 1.07 years; 73% were male and 27%, female. Hearing loss was found in 21% of students. The main hearing loss-related risk factor was exposure to recreational noise: frequent attendance at discotheques and pop-music concerts; use of personal stereos; and noise exposure in school workshops. The high frequency of hearing loss in high school students from one Mexico City school (nearly one fifth of the sample) was found to be related to noise exposure mainly during recreational activities.
authors.affiliation: Departamento de Epidemiología, Instituto Nacional de Rehabilitación, Ciudad de México, México.
authors.forename: María del Consuelo
authors.initials: Mdel C
authors.lastname: Martínez-Wbaldo
authors.forename: Claudia
authors.initials: C
authors.lastname: Soto-Vázquez
authors.forename: Ivonne
authors.initials: I
authors.lastname: Ferre-Calacich
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Zambrano-Sánchez
authors.forename: Lucía
authors.initials: L
authors.lastname: Noguez-Trejo
authors.forename: Adrián
authors.initials: A
authors.lastname: Poblano
mesh_terms: D000293:Adolescent; D001299:Audiometry; D004781:Environmental Exposure / Q000009:adverse effects*; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000453:epidemiology / Q000209:etiology*; D006319:Hearing Loss, Sensorineural / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009622:Noise / Q000009:adverse effects*; D011998:Recreation; D012307:Risk Factors; D012574:Schools; D055815:Young Adult