Fig. 4From: Development and performance assessment of novel machine learning models to predict pneumonia after liver transplantationSurvival rates of patients with or without postoperative pneumonia. 591 cases with a survival data that last over a 5-year interval were analyzed. The difference of both curves were examined by Log-rank test (Chi square 4.034, df 1, P = 0.0446) and Gehan–Breslow Wilcoxon test (Chi square 4.288, df 1, P = 0.0384)Back to article page