Fig. 2

The combined prognostic role of the systemic immune-inflammation index and tumor-infiltrating lymphocytes. Estimated Kaplan–Meier curves for overall survival grouped according systemic immune-inflammation index (SII) and tumor-infiltrating lymphocytes (TILs) category. a Patients grouped according to TILs level at the invasive margin and SII; The 5-year overall survival were: low SII and high TILs: 60%; high SII and high TILs: 44%; low SII and low TILs: 37%; high SII and low TILs: 20%. b Patients grouped according to TILs level in the tumor’s central region and SII; low SII and high TILs: 49%; high SII and high TILs: 33%; low SII and low TILs: 33%; high SII and low TILs: 21%