title: [Frequency and risk factors of voice disorders among teaching staff of La Rioja, Spain. Clinical study: questionnaire, function vocal examination, acoustic analysis and videolaryngostroboscopy].
abstract: OBJECTIVE
  To the analyse the risk factors of voice disorders among teaching staff of La Rioja, Spain.
  
  
  METHODS
  We carried out a transversal study of voice disorders in teaching staff of La Rioja (a random sample of 931 of 3.113 teachers).
  
  
  METHODS
  527 teachers of random sample took part of study: 332 female (63%) and 195 male (37%).
  
  
  METHODS
  All teachers filled in a standard questionnaire and posteriorly they underwent an, ENT and functional vocal cord examination, videolaryngostroboscopy and acoustic analysis with MDVP.
  
  
  RESULTS
  The prevalence of voice disorders among La Rioja Teachers was 57%: 20% for organic lesions, 8% for chronic laryngitis and 29% for functional disorders. Women compared with men did not have a higher prevalence of voice disorders (p > 0.05) (OR: 1.138). Professional and personal factors as well as classroom atmosphere were studied. The most relevant factors in the pathological group were previous vocal pathology, laryngeal surgery, gastroesophageal reflux and, classroom dryness and smoking habits.
  
  
  CONCLUSIONS
  The most relevant factor of voice disorders in teaching professional is the vocal overwork during their job. It is advisable to carry out a clinical evaluation of all the future teachers in their educational programs.
authors.affiliation: Servicio ORL, Hospital San Millán-San Pedro, Logroño, La Rioja. jpreciado@hsm.seris.es
authors.forename: J
authors.initials: J
authors.lastname: Preciado
authors.forename: C
authors.initials: C
authors.lastname: Pérez
authors.forename: M
authors.initials: M
authors.lastname: Calzada
authors.forename: P
authors.initials: P
authors.lastname: Preciado
mesh_terms: D000162:Acoustics; D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007828:Laryngoscopy; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology; D015995:Prevalence; D012307:Risk Factors; D013030:Spain; D049489:Stroboscopy; D011795:Surveys and Questionnaires; D013663:Teaching; D014741:Video Recording; D014827:Vocal Cords / Q000503:physiopathology; D014832:Voice Disorders / Q000453:epidemiology* / Q000209:etiology / Q000503:physiopathology