title: Comparing the Performance Status Scale and MD Anderson Dysphagia Inventory as swallowing outcome measures in head and neck cancer: a prospective cohort study.
abstract: OBJECTIVE
  To examine the relationship between the two disease-specific measures currently in use to assess swallowing outcomes following treatment in patients with head and neck cancer: the Performance Status Scale (PSS) and MD Anderson Dysphagia Inventory (MDADI).
  
  
  METHODS
  A prospective cohort study.
  
  
  METHODS
  Four head and neck cancer multidisciplinary clinics in the North of England Cancer Network.
  
  
  METHODS
  114 patients with cancers of the upper aerodigestive tract.
  
  
  METHODS
  Measures of swallowing function administered prospectively across 4 timepoints
  
  
  RESULTS
  Spearman's correlation coefficients were used to measure the relationship between the two scales. There was statistically significant correlation between the two tools at pre-treatment (rs = 0.428, P < 0.000), 3 months post-treatment (rs = 0.454, P < 0.002), 6 months post-treatment (rs = 0.551, P < 0.000) and 12 months post-treatment (rs = 0.680, P < 0.000).
  
  
  CONCLUSIONS
  This is the first prospective study comparing the MDADI and PSS questionnaires at multiple time points. Our study shows that these different instruments have a good relationship in measuring swallowing function in patients with head and neck cancer in short and medium term after treatment.
authors.affiliation: Freeman Hospital, Newcastle upon Tyne, UK.
authors.forename: M K
authors.initials: MK
authors.lastname: Khan
authors.affiliation: Sunderland Royal Hospital, Sunderland, UK.
authors.forename: J
authors.initials: J
authors.lastname: Patterson
authors.affiliation: Freeman Hospital, Newcastle upon Tyne, UK.
authors.forename: S
authors.initials: S
authors.lastname: Owen
authors.affiliation: James Cook University Hospital, Middlesbrough, UK.
authors.forename: S
authors.initials: S
authors.lastname: Rees
authors.affiliation: Cumberland Infirmary, Carlisle, UK.
authors.forename: L
authors.initials: L
authors.lastname: Gamberini
authors.affiliation: Freeman Hospital, Newcastle upon Tyne, UK.|Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK.
authors.forename: V
authors.initials: V
authors.lastname: Paleri
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003680:Deglutition Disorders / Q000503:physiopathology*; D004185:Disability Evaluation; D004739:England; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011446:Prospective Studies; D011795:Surveys and Questionnaires