title: Modified Rivermead Mobility Index: a reliable measure in people within 14 days post-stroke.
abstract: OBJECTIVE
  The reliability of the Modified Rivermead Mobility Index (MRMI) has not previously been investigated in the very early post-stroke phase. The aim of the study was to evaluate inter-rater and intra-rater reliability and internal consistency in patients, 1-14 d post-stroke.
  
  
  METHODS
  A cohort study with repeated measures within 24 h, on 37 patients, 1-14 d post-stroke was conducted. Inter-rater (two raters) and intra-rater (one rater) reliability was analyzed using weighted kappa (κ) statistics and internal consistency with Cronbach's alpha and intra-class correlation (ICC), 3.k.
  
  
  RESULTS
  Inter-rater and intra-rater reliability was excellent (ICC coefficient 0.97 and 0.99) for MRMI summary score. Intra-rater exact agreement for separate items was between 77% and 97%; κ between 0.81 and 0.96. Inter-rater exact agreement for separate items was between 68% and 92%; κ 0.59-0.87. The internal consistency was high (α 0.96; ICC 3.k 0.99).
  
  
  CONCLUSIONS
  The MRMI is a reliable measure of physical mobility in the early post-stroke phase.
authors.affiliation: Department of Physiotherapy, Örebro University Hospital , Örebro , Sweden .
authors.forename: Lisa
authors.initials: L
authors.lastname: Rådman
authors.forename: Anette
authors.initials: A
authors.lastname: Forsberg
authors.forename: Ylva
authors.initials: Y
authors.lastname: Nilsagård
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D051346:Mobility Limitation; D015588:Observer Variation; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D000071939:Stroke Rehabilitation
keywords: Assessment; physiotherapy; reliability; stroke