Preoperative systemic inflammatory response index as a prognostic marker for distal cholangiocarcinoma after pancreatoduodenectomy

Figure 1 Flowchart of the study cohort. dCCA: Distal cholangiocarcinoma.

Figure 2 The receiver operating characteristic curves explore the value of preoperative inflammatory biomarkers in predicting the long-time prognosis in distal cholangiocarcinoma after pancreatoduodenectomy. A: The value of receiver operating characteristic (ROC) in predicting overall survival in distal cholangiocarcinoma (dCCA) after pancreatoduodenectomy (PD); B: The value of ROC in predicting recurrence-free survival in dCCA after PD. PLR: Platelet-to-lymphocyte ratio; NLR: Neutrophil to lymphocyte ratio; LMR: Lymphocyte to monocyte ratio; NMR: Neutrophil-to-monocyte ratio; APRI: Aspartate transaminase-to-platelet; ABR: Albumin to bilirubin ratio; ICPI: Inflammation-combined prognostic index; SII: Systemic immune-inflammation index; SIRI: Systemic inflammatory response index.

Figure 3 Kaplan-Meier curves for long-time prognosis by systemic inflammatory response index. A: Kaplan-Meier curves for overall survival by systemic inflammatory response index (SIRI); B: Kaplan-Meier curves for recurrence-free survival by SIRI. SIRI: Systemic inflammatory response index; OS: Overall survival; RFS: Recurrence-free survival.