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Table 1 Baseline group classified according to pathology

From: The linear relationship between systolic pulmonary artery pressure and mean pulmonary artery pressure is maintained regardless of autonomic or rhythm disturbances

Group   Number of patients MPAP SD Systolic Regression R2 Diastolic Regression R2
Normal   83   19 3.6 0.50 SPAP + 3.36 0.777 1.11DPAP + 4.00 0.976
Group 1   135   50 12,8 0.58 SPAP + 3.52 0.995 1.16DPAP + 9.68 0.995
  IPAH   68 51 11,2 0.60 SPAP + 2.35 0.838 1.10DPAP + 11.6 0.878
  Medication induced PAH   10 51 13,9 0.61 SPAP + 0.02 0.991 1.44DPAP+ 0.43 0.989
  Cirrhosis   15 52 12,5 0.60 SPAP −0.06 0.990 1.45DPAP + 1.07 0.986
  Congenital   13 57 16,8 0.61 SPAP −1.03 0.986 1.44DPAP + 1.50 0.976
  Systemic sclerosis 22 44 12,5 0.61 SPAP + 1.65 0.966 1.10DPAP + 4.07 0.939
  HIV   2 62 a     
  Hereditary   1 49 a     
  schistosomiasis 1 50 a     
  veno-occlusive disease 3 47 a     
Group 2   109   38 10,8 0.59 SPAP + 3.57 0.877 1.25 DPAP + 3.25 0.867
Group 3   26   39 9,4 0.54 SPAP+ 5.62 0.908 1.31 DPAP + 1.75 0.877
Group 4   63   44 10.4 0.53 SPAP + 3.93 0.789 1.12 DPAP + 11.50 0.987
Group 5   12   44 11,04 0.53 SPAP + 6.38 0.976 1.45 DPAP-0.20 0.856
Unclassifed   1   43 a a a a a
  1. IPAH idiopathic pulmonary arterial hypertension, MPAP mean pulmonary arterial pressure, SPAP systolic pulmonary arterial pressure, DPAP diastolic pulmonary arterial pressure, SD standart deviation
  2. MPAP is expressed in mmHg
  3. awhere calculations are not applicable