title: Measuring upper limb capacity in patients after stroke: reliability and validity of the stroke upper limb capacity scale.
abstract: OBJECTIVE
  To investigate the interrater reliability and construct validity of the Stroke Upper Limb Capacity Scale (SULCS).
  
  
  METHODS
  Cohort study.
  
  
  METHODS
  Inpatient department of a rehabilitation center.
  
  
  METHODS
  Patients after stroke (N=21; mean age ± SD, 61.7 ± 7.9y; 57% men), undergoing inpatient rehabilitation.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  The SULCS was administered by occupational therapists (OTs) within 6 weeks after stroke (t1), 3 months after t1 by the same OT (t2), and within 1 week after t2 by another OT (t3). Interrater reliability, the repeatability between different raters, was assessed by calculating the intraclass correlation coefficient (ICC) based on the scores at t2 and t3. Construct validity, indicating agreement with hypotheses concerning the construct that is being measured, was assessed with Spearman rank correlation coefficient (ρ). The SULCS scores were cross-sectionally correlated with those of the Action Research Arm Test (ARAT) and the Rivermead Motor Assessment (RMA) at t1, and longitudinally with the respective change scores between t1 and t2.
  
  
  RESULTS
  The SULCS (range, 0-10) had a high ICC (.94; 95% confidence interval, .86-.97) and strong cross-sectional correlation with both the ARAT and the RMA (ρ=.91 and ρ=.85, respectively), while the respective change scores showed a strong correlation with the ARAT (ρ=.71) and a moderate correlation with the RMA (ρ=.48).
  
  
  CONCLUSIONS
  The SULCS has good interrater reliability and construct validity.
authors.affiliation: Department of Rehabilitation, Nijmegen Centre for Evidence Based Practice, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands. a.houwink@reval.umcn.nl
authors.forename: Annemieke
authors.initials: A
authors.lastname: Houwink
authors.forename: Leo D
authors.initials: LD
authors.lastname: Roorda
authors.forename: Wendy
authors.initials: W
authors.lastname: Smits
authors.forename: Ivo W
authors.initials: IW
authors.lastname: Molenaar
authors.forename: Alexander C
authors.initials: AC
authors.lastname: Geurts
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D009788:Occupational Therapy / Q000379:methods*; D015203:Reproducibility of Results; D012959:Socioeconomic Factors; D020521:Stroke / Q000150:complications* / Q000503:physiopathology; D000071939:Stroke Rehabilitation; D016896:Treatment Outcome; D034941:Upper Extremity / Q000503:physiopathology*