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Table 5 Responsiveness ratio (GRI)

From: The Dutch Lower Extremity Functional Scale was highly reliable, valid and responsive in individuals with hip/knee osteoarthritis: a validation study

  Mean change SD (baseline) SD (change) Mean change (GPE = 1-2) SD mean change (GPE = 3-5) SRM GRI
LEFS 1.42 14.41 11.25 12.50 8.38 0.13 1.49
WOMAC-PF 0.19 14.84 8.86 9.66 8.06 0.02 1.20
SF36-PF 0.00 22.73 13.68 14.44 11.86 0.00 1.22
  1. Abbreviations: GPE = Global perceived effect, GRI = Guyatt Responder Ratio, LEFS = Lower Extremity Functional Scale, SD = Standard Deviation, SF-36-PF = Short Form 36 - Physical Function scale, SRM = Standardized Response Mean, WOMAC = Western Ontario and McMasters University Osteoarthritis Index - Physical Function scale.