Fig. 3From: Circulating choline levels are associated with prognoses in patients with pulmonary hypertension: a cohort studyKaplan–Meier analysis for the incidence of composite outcome events in PAH (A) and CTEPH subgroups (B). One hundred and seventy-one patients with PAH and seventy-eight with CTEPH were enrolled for analysis. P-value calculated using the log-rank test. PAH: pulmonary arterial hypertension; CTEPH: chronic thromboembolic pulmonary hypertensionBack to article page