58.8 ± 10.8 mmHg; PAH, 80.2 ± 14.3 mmHg, p < 0.0001). The multiple logistic regression analysis indicated post-exercise systolic pulmonary artery pressure as an independent predictor of PAH (p = 0.013). The area under the curve by post-exercise systolic pulmonary artery pressure was 0.91 for PAH. Post-exercise systolic pulmonary artery pressure ≥ 69.6 mmHg predicted PAH with the sensitivity of 93% and the specificity of 90%.