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Table 1 Subject demographic and clinical characteristics

From: The economic burden of pulmonary arterial hypertension (PAH) in the US on payers and patients

  Final PAH study sample (N = 504)
  Mean SD
Age, years 49.73 19.79
  n %
Male gender 117 23.21
Geographic region   
 Northeast 45 9.15
 Midwest 148 30.08
 South 216 43.90
 West 83 16.87
Insurance   
 Commercial 439 87.10
 Medicare 65 12.90
Baseline comorbidities   
 Diseases of the heart 491 97.42
 Lower respiratory disease 433 85.91
 Hypertension 298 59.13
 Diseases of arteries, arterioles, and capillaries 267 52.98
 Systemic lupus erythematosus and connective tissue disorders 261 51.79
 Respiratory infections 188 37.30
 Upper gastrointestinal disorders 182 36.11
 Non-traumatic joint disorders 181 35.91
 Connective tissue disease 170 33.73
 Injuries and conditions due to external causes 163 32.34
 Diseases of the urinary system 162 32.14
 Chronic obstructive pulmonary disease and bronchiectasis 156 30.95
 Disorders of lipid metabolism 153 30.36
 Gastrointestinal disorders 141 27.98
 Cardiac and circulatory congenital anomalies 136 26.98
 Anemia 133 26.39