GPT and pulmonary arterial hypertension: ALT and AST were correlated with hospital mortality and 90-day mortality in total patients with PPH (For ALT, hospital mortality: OR = 1.00, 95% CI = 1.00–1.01, p = 0.041, 90-day mortality: OR = 1.00, 95% CI = 1.00–1.01, p = 0.049; for AST, hospital mortality: OR = 1.00, 95% CI = 1.00–1.01, p = 0.008, 90-day mortality: OR = 1.00, 95% CI = 1.00–1.01, p = 0.022).