ALB and pulmonary hypertension, primary, 1: In particular, patients in the PHT group have higher total bilirubin levels (19.5 vs. 14.6 μmol/l; P < 0.001), higher INR values (1.1 vs. 1.0; P = 0.009), longer prothrombin time (14.2 vs. 13.1; P < 0.001), longer activated partial thromboplastin time (54.1 vs. 35.4; P < 0.001), lower creatinine levels (79.7 vs. 86.2; P = 0.009), lower serum albumin levels (40.7 vs. 42.6 g/l; P = 0.006), higher Child-Pugh score (5.3 vs. 5.1; P < 0.001) and higher MELD score (8.8 vs. 7.9; P < 0.001).