1. Scope of Problem of Pulmonary Arterial Hypertension
Paul D. Stein, MD, Fadi Matta, MD, Patrick G. Hughes, DO 
The American Journal of Medicine 
Volume 128, Issue 8, Pages (August 2015)
DOI: /j.amjmed
Copyright © 2015 Elsevier Inc. Terms and Conditions

2. Figure 1
Flow diagram showing number of visits of patients with pulmonary arterial hypertension (PAH) Group 1 in the emergency department (ED), number hospitalized, and number of all-cause deaths in the ED and in hospital,
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

3. Figure 2
Number of visits in the emergency department (ED)/100,000 population of patients ≥18 years with pulmonary arterial hypertension (PAH) according to year. The number of visits decreased from (r = −0.982, slope = −0.710 visits/100,000 patients/year, P = .003).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

4. Figure 3
Number of hospitalizations of patients with pulmonary arterial hypertension (PAH)/100,000 population of patients ≥18 years according to year. The number of hospitalizations decreased from (r = −0.985, slope = −0.800 hospitalizations/100,000 patients/year, P = .002).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

5. Figure 4
Number of deaths of patients with pulmonary arterial hypertension (PAH)/million population of patients ≥18 years according to year. The number of deaths decreased from (r = −0.985, slope = −0.730 deaths/million patients/year, P = .002).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

6. Figure 5
Number of deaths of patients with pulmonary arterial hypertension (PAH)/million population/year according to age. The death rate increased exponentially with age r = 0.992, P = .0001).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions