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Predictive ability of the SIRI was compared with PLR, NLR and MLR by ROC curves at 3 years (A) and 5 years (B) in the primary cohort, and at 3 years (C) and 5 years (D) in the validation cohort. MLR, monocyte lymphocyte ratio; NLR, neutrophil lymphocyte ratio; PLR, platelet lymphocyte ratio; ROC, receiver operating characteristic; SIRI, Systemic Inflammation Response Index.
