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Table 4 Comparison of different prognostic models on 357 ESCC patients

From: Preoperative systemic inflammation score (SIS) is superior to neutrophil to lymphocyte ratio (NLR) as a predicting indicator in patients with esophageal squamous cell carcinoma

  Concordance Indices AIC Likelihood Ratio X2
C-index Bootstrap 95% CI
Model 1 0.715 0.672–0.759 1999.66 93.013
Model 2 0.718 0.675–0.762 1999.53 95.146