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Table 2 Spearman’s Correlation of ESWT with possible anchors

From: Changes in the endurance shuttle walk test in COPD patients with chronic respiratory failure after pulmonary rehabilitation: the minimal important difference obtained with anchor- and distribution-based method

 

ΔESWT (s)

ΔESWT (%)

ΔESWT (m)

∆ Wpeak, W

0.568

0.525

0.610

∆ CRQ total

0.449

0.441

0.428

∆ CRQ dyspnoea

0.313

0.299

0.305

∆ CRQ fatigue

0.373

0.328

0.350

∆ CRQ emotion

0.363

0.351

0.353

∆ CRQ mastery

0.389

0.338

0.381

∆ 6MWD, m

0.307

0.318

0.275

  1. Values printed bold p < 0.05.
  2. Wpeak: peak work rate; CRQ: Chronic Respiratory Questionnaire; 6MWD: six minute walking distance; ΔESWT: change in endurance shuttle walking test.