Fig. 2

X-tile plots of the ACR on HCC patients. The plot shows the χ2 log-rank values that were created when the cohort was divided into two populations. The cutoff point, which is highlighted by a black/ white circle (a), is demonstrated on a histogram of the entire cohort (b), the relative risks for all cutoff points from low to high (left to right, x-axis), are calculated as event in high population / event risk in low population (c), a Kaplan-Meier overall survival curve (d). The preoperative ACR was divided at the optimal cutoff point, as defined by the most significant point on the plot (> 5.4 and ≤ 5.4, p = 0.001)