A, The age-adjusted hazard ratio (AHR) was 3.43 (95% CI, 1.02–11.55; P = .047) for the comparison between patients with pulmonary hypertension documented by right heart catheterization (RHC) and those who did not have pulmonary hypertension documented by RHC; 2.14 (95% CI, 1.25–3.67; P = .006) for patients with pulmonary hypertension vs those who did not undergo RHC (uncatheterized); and 0.62 (95% CI, 0.19–2.03; P = .43) for patients without pulmonary hypertension vs those who did not undergo RHC (uncatheterized). B, The HR was 3.35 (95% CI, 1.01–11.31; P = .04) for the comparison between patients with pulmonary hypertension documented by RHC and those who did not have pulmonary hypertension documented by RHC; 1.73 (95% CI, 1.02–2.93; P = .04) for patients with pulmonary hypertension vs those who did not undergo RHC (uncatheterized); and 0.49 (95% CI, 0.15–1.59; P = .23) for patients without pulmonary hypertension vs those who did not undergo RHC (uncatheterized).