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Table 5 Correlation between postoperative parameters

From: Changes in exercise capacity, muscle strength, and health-related quality of life in esophageal cancer patients undergoing esophagectomy

Parameters   6MWD Hand grip strength Isometric knee extensor muscle strength
Right Left Right Left
6MWD r 1 0.159 0.071 0.325 0.526
P value 0 0.394 (n = 31) 0.704 (n = 31) 0.085 (n = 29) 0.003* (n = 29)
CAT scores r −0.053 −0.020 0.014 −0.421 −0.383
P value 0.816 (n = 22) 0.927 (n = 23) 0.948 (n = 23) 0.058 (n = 21) 0.086 (n = 21)
  1. Spearman’s rank correlation coefficient was used for the analysis. *P < 0.05