Fig. S1. Kaplan-Meier curves of patients in training and validation cohorts. No statistical difference in OS between the two cohorts(P = 0.78).

Fig. S2. Decision curves of CIPS and the other score prediction models for 1- and 3-year survival prediction after TIPS.

Risk stratification based on CIPS

Risk stratification was performed by calculating the CIPS scores of the entire cohort of patients and then obtaining the optimal cutoff of the population scores using the R software survival package, dividing the population into low-risk and high-risk groups according to cutoff value. The best cutoff score was 149 (Fig. S4).

Fig. S3. Application of the CIPS to identify a cohort of “high-risk” patients. The best cutoff score was 149.