title: Vocal Fatigue Symptoms and Laryngeal Status in Relation to Vocal Activity Limitation and Participation Restriction.
abstract: OBJECTIVE
  The study aims to investigate the vocal fatigue symptoms and laryngeal status in relation to vocal activity limitations and vocal participation restrictions.
  
  
  METHODS
  This is a case-control study.
  
  
  METHODS
  Two hundred six teachers were divided into two groups based on the frequency of their self-reported vocal symptoms being more or less than the mean of reported frequency. The study compared odds for activity limitation and participation restriction in relation to frequency of vocal symptoms, number of vocal symptoms recurring weekly, and organic laryngeal changes. Activity limitation and participation restriction were studied using the Voice Activity and Participation Profile questionnaire.
  
  
  RESULTS
  Increased odds were found for teachers with frequent vocal symptoms and especially those with one or more vocal symptom recurring weekly. Odds were found to be 2.6-8.5 times more likely in teachers with more frequent vocal symptoms. The odds increased dramatically with increase of the number of vocal symptoms recurring weekly. Laryngeal organic changes were found to increase the odds but insignificantly.
  
  
  CONCLUSIONS
  Teachers with frequent vocal symptoms, especially those with vocal symptoms recurring weekly, have increased odds ratio for vocal activity limitation and vocal participation restrictions. High scores or frequent occurrence of self-reported vocal fatigue symptoms must be taken seriously in the evaluation of vocal working ability.
authors.affiliation: Speech and Voice Research Laboratory, School of Education, University of Tampere, Tampere, Finland. Electronic address: Irma.ilomaki@uta.fi.
authors.forename: Irma
authors.initials: I
authors.lastname: Ilomäki
authors.affiliation: Speech and Voice Research Laboratory, School of Education, University of Tampere, Tampere, Finland; Department of Otorhinolaryngology and Phoniatrics, Tampere University Hospital and School of Medicine, University of Tampere, Tampere, Finland.
authors.forename: Elina
authors.initials: E
authors.lastname: Kankare
authors.affiliation: Speech and Voice Research Laboratory, School of Education, University of Tampere, Tampere, Finland.
authors.forename: Jaana
authors.initials: J
authors.lastname: Tyrmi
authors.affiliation: Department of Otorhinolaryngology and Phoniatrics, Tampere University Hospital and School of Medicine, University of Tampere, Tampere, Finland.
authors.forename: Leenamaija
authors.initials: L
authors.lastname: Kleemola
authors.affiliation: Department of Otolaryngology and Phoniatrics-Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Tampere, Finland.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Geneid
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D017281:Cost of Illness; D005260:Female; D006801:Humans; D007830:Larynx / Q000503:physiopathology*; D016015:Logistic Models; D008875:Middle Aged; D009784:Occupational Diseases / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D016272:Occupational Health; D016017:Odds Ratio; D012008:Recurrence; D012307:Risk Factors; D000070777:School Teachers / Q000523:psychology*; D057566:Self Report; D013997:Time Factors; D014832:Voice Disorders / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D014833:Voice Quality; D014938:Work Capacity Evaluation
keywords: Evaluation of vocal working ability; Frequent vocal fatigue symptoms; Laryngeal examination; Teacher's voice; VAPP