Fig. 4

Receiver operating characteristics (ROC) analysis for the combination of sTILs with clinicopathologic parameters (patients’ age, histological grade, LVI and Ki-67 index) to predict pCR in TNBCs. The AUC (area under the curve) were listed in the picture. 95% confidence interval (CI) of combined predictive model was 0.714–0.856 (P = 0.0001), sTILs: 95% CI 0.575–0.747 (P = 0.0001), patients’ age: 95% CI 0.499–0.681(P = 0.057), histological grade: 95% CI 0.450–0.634 (P = 0.373), LVI: 95% CI 0.562–0.733 (P = 0.002), Ki-67: 95% CI 0.503–0.683 (P = 0.049)