Figure 1From: Bilirubin as a prognostic marker in patients with pulmonary arterial hypertension Kaplan-Meier estimates of survival in patients with or without hyperbilirubinemia. The broken and continuous lines indicate the patients with and without hyperbilirubinemia, respectively. Hyperbilirubinemia was defined as serum total bilirubin > 1.2 mg/dL.Back to article page