Figure 3

X-tile analysis of survival data in patients with pancreatic ductal adenocarcinoma (A, B) The optimal cut-off CD8⁺ T-cell level of 18.69%, determined by X-tile, is used to define the CD8⁺ T-high and CD8⁺ T-low groups. (C) CD8⁺ T in the CD8⁺ T-low group and the CD8⁺ T-high group. The chart includes a box plot, density plot, and dot plot. The 25th and 75th percentiles are shown as connecting lines between groups. (D) The Kaplan-Meier curve and log-rank test suggest that patients in the CD8⁺ T-high group survive significantly longer than those in the CD8⁺ T-low group.