title: The ICF Core Sets for hearing loss--researcher perspective. Part I: Systematic review of outcome measures identified in audiological research.
abstract: OBJECTIVE
  To review the literature in order to identify outcome measures used in research on adults with hearing loss (HL) as part of the ICF Core Sets development project, and to describe study and population characteristics of the reviewed studies.
  
  
  METHODS
  A systematic review methodology was applied using multiple databases. A comprehensive search was conducted and two search pools were created, pool I and pool II.
  
  
  METHODS
  The study population included adults (≥ 18 years of age) with HL and oral language as the primary mode of communication.
  
  
  RESULTS
  122 studies were included. Outcome measures were distinguished by 'instrument type', and 10 types were identified. In total, 246 (pool I) and 122 (pool II) different measures were identified, and only approximately 20% were extracted twice or more. Most measures were related to speech recognition. Fifty-one different questionnaires were identified. Many studies used small sample sizes, and the sex of participants was not revealed in several studies.
  
  
  CONCLUSIONS
  The low prevalence of identified measures reflects a lack of consensus regarding the optimal outcome measures to use in audiology. Reflections and discussions are made in relation to small sample sizes and the lack of sex differentiation/descriptions within the included articles.
authors: * Audiological Research Centre, Örebro University Hospital, School of Health and Medical Sciences/Swedish Institute for Disability Research, Örebro University , Örebro , Sweden.
authors: Sarah
authors: S
authors: Granberg
authors: Jennie
authors: J
authors: Dahlström
authors: Claes
authors: C
authors: Möller
authors: Kim
authors: K
authors: Kähäri
authors: Berth
authors: B
authors: Danermark
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001298:Audiology / Q000379:methods*; D001302:Audiometry, Speech; D001306:Auditory Pathways / Q000503:physiopathology*; D035843:Biomedical Research; D004185:Disability Evaluation; D006304:Health Status; D006309:Hearing; D034381:Hearing Loss / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D006801:Humans; D064702:International Classification of Functioning, Disability and Health; D007802:Language; D009622:Noise / Q000009:adverse effects; D010470:Perceptual Masking; D019986:Persons with Hearing Disabilities / Q000145:classification / Q000523:psychology; D011237:Predictive Value of Tests; D021641:Recognition, Psychology; D012720:Severity of Illness Index; D013067:Speech Perception; D011795:Surveys and Questionnaires