title: The ProFitMap-neck--reliability and validity of a questionnaire for measuring symptoms and functional limitations in neck pain.
abstract: OBJECTIVE
  To assess overall reliability and validity of a neck-specific questionnaire, the Profile Fitness Mapping neck questionnaire (ProFitMap-neck), on three chronic neck pain groups.
  
  
  METHODS
  Participating groups were as follows: whiplash associated disorders, inpatient care (IP-WAD, n=127); nonspecific neck pain, inpatient care (IP-NS, n=83) and nonspecific neck pain subjects (non-IP-NS, n=104). All groups answered the ProFitMap-neck and the SF-36, whereas non-IP-NS also answered the Neck Disability Index (NDI) and the Functional Self-Efficacy Scale (SES). Internal consistency, test-retest reliability and components of convergent construct, face and content validity were determined for the ProFitMap-neck.
  
  
  RESULTS
  The ProFitMap-neck showed good internal consistency in all three groups, and ICC test-retest reliability (0.80-0.91). Good correlation (0.66-0.78) and highest agreement was reached with NDI. According to the International Classification of Functioning, Disability and Health, the symptom scale of the ProFitMap-neck was mainly classified to the domain of impairments-body functions, and the functional limitation scale to the activity limitation domain.
  
  
  CONCLUSIONS
  The results indicate that the ProFitMap-neck is valid for measuring symptoms and functional limitations in people with chronic neck pain. The combination of a composite total score of symptoms and function as well as separate scores of each domain makes ProFitMap-neck suitable for research as well as in clinical practice.
authors.affiliation: Centre for Musculoskeletal Research, Department of Occupational and Public Health Sciences, Faculty of Health and Occupational Studies, University of Gävle, Gävle, Sweden. mbb@hig.se
authors.forename: Martin
authors.initials: M
authors.lastname: Björklund
authors.forename: Jern
authors.initials: J
authors.lastname: Hamberg
authors.forename: Marina
authors.initials: M
authors.lastname: Heiden
authors.forename: Margareta
authors.initials: M
authors.lastname: Barnekow-Bergkvist
mesh_terms: D000328:Adult; D000368:Aged; D004185:Disability Evaluation; D006233:Persons with Disabilities; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019547:Neck Pain / Q000175:diagnosis / Q000503:physiopathology; D010147:Pain Measurement / Q000379:methods / Q000592:standards*; D011594:Psychometrics / Q000295:instrumentation / Q000592:standards*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires / Q000592:standards*; D014911:Whiplash Injuries