Fig. 2
From: Circulating acetylcholine serves as a potential biomarker role in pulmonary hypertension
Kaplan-Meier analysis for the incidence of composite outcome events (A), death (B), heart failure (C), and symptoms worsening (D) in patients with high and low acetylcholine levels. Four hundred and eight patients with PH were analyzed (n = 203 in the high acetylcholine group; n = 205 in the low acetylcholine group). P-value calculated by the log-rank test