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Table 2 Spearman’s correlation coefficient between the transition scale, and absolute and relative change in 6MWT distance

From: Minimal important improvement thresholds for the six-minute walk test in a knee arthroplasty cohort: triangulation of anchor- and distribution-based methods

Change in 6MWT Rating on transition scale
  Baseline to 10-weeks Baseline to 26-weeks 10-weeks to 26-weeks
Absolute Baseline to 10-weeks 0.297 (p < 0.001) NA NA
n = 156
Relative Baseline to 10-weeks 0.259 (p < 0.001) NA NA
n = 156
Absolute Baseline to 26-weeks NA 0.259 (p < 0.001) NA
n = 211
Relative Baseline to 26-weeks NA 0.239 (p < 0.001) NA
n = 211
Absolute10-weeks to 26-weeks NA NA 0.03 (p = 0.73)
n = 139
Relative 10-weeks to 26-weeks NA NA 0.054 (p = 0.526)
n = 139
  1. NA not applicable