ABCG2 and Ascites: In multivariate analysis, ascites (HR = 9.947, 95% CI = 3.142–31.491, p = 0.000), CP score (HR = 5.776, 95% CI = 2.031–16.426, p = 0.001), infection (HR = 12.168, 95% CI = 3.680–40.231, p < 0.001), and ABCG2 rs2231142 (HR = 0.234, 95% CI = 0.090–0.607, p = 0.003) remained independent predictors for survival (Table 3).