Fig. 2.

Kaplan–Meier survival curve for veterans with pulmonary hypertension receiving care in the Veteran Health Administration system, 01/01/2003-09/30/2015. (a) Overall survival. Median overall survival after diagnosis of PH is 3.88 years. (b) Overall survival stratified by gender. Median survival for females is 7.05 years compared with 3.81 years for males. (c) Overall survival stratified by PH subtype. There is lower survival in those with PH due to left heart disease (Group 2), lung disease (Group 3) and multiple causes, when compared with patients with presumed Group 1 PAH. (d) Overall survival stratified by Elixhauser comorbidity deciles. Higher comorbidity burden is associated with lower survival from time of PH diagnosis.