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Fig. 1 | Perioperative Medicine

Fig. 1

From: Clinical covariates that improve surgical risk prediction and guide targeted prehabilitation: an exploratory, retrospective cohort study of major colorectal cancer surgery patients evaluated with preoperative cardiopulmonary exercise testing

Fig. 1

Kaplan-Meier curves showing survival based on CPET-derived gas exchange parameters—VO2 at AT (dichotomised at AT > 11 ml/kg/min; Log-Rank Mantel-Cox = not significant), Ve/VCO2 at AT (dichotomised at Ve/VCO2 < 35; Log-Rank Mantel-Cox; P = 0.001), VO2 at peak exercise (dichotomised at pVO2 >710 ml/min/m2; Log-Rank Mantel-Cox; P < 0.001) and when Ve/VCO2 and peak VO2 variables are combined. a Univariate of VO2 (ml/kg/min) at AT. b Ve/VCO2 at AT. c Univariate of peak VO2 (ml/min/m2) corrected to body surface area. d Bivariate of Ve/VCO2 and peak VO2 corrected to body surface area

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