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Kaplan-Meier curves and multivariate analysis of survival. (A) PFS according to the status of sCD8+ cell (low or high). (B) DMFS according to CTLA-4+ cell density (low or high). (C) OS according to CD86 expression (low or high) level. PFS, progression-free survival; DMFS, distant metastasis-free survival; OS, overall survival. (D–F) Forest plots of PFS (D), DMFS (E), and OS (F) for variables by multivariate Cox analysis. *, p < 0.05; **, p < 0.01; ***, p < 0.001.
