Compared with patients without PoPH, patients with PoPH exhibited increased MELD score (p=0.006), Child–Pugh score (p=0.001), total bilirubin (p=0.005), and aspartate aminotransferase (AST) (p=0.02) levels, but lower albumin (p=0.01) and Hb (p < 0.001) levels (Table 1). This evidence concerns the gene GSTM1 and Pulmonary arterial hypertension associated with portal hypertension.