Table 4.

Hemodynamic Characteristics of the Cohort

Characteristic	PAH (n = 564)	Cpc-PH (n = 364)	Ipc-PH (n =1,456)
Heart rate, beats/min (n = 1,318)	78 ± 14 y	82 ± 16	76 ± 16*
Systolic BP, mm Hg(n = 2,167)	126 ± 24	128 ± 26	126 ± 26
Diastolic BP, mm Hg(n = 2,125)	76 ± 16	76 ± 13	70 ± 14*
Mean RA pressure, mm Hg (n = 2,200)	8 ± 5 y	14 ± 7	12 ± 6*
Systolic PA pressure, mm Hg(n = 2,293)	72 ± 23	69 ± 20	53 ± 13*
Diastolic PA pressure, mm Hg(n = 2,294)	29 ± 11y	34 ± 8	23 ± 6*
Mean PA pressure, mm Hg(n = 2,293)	45 ± 14y	47 ± 11	36 ± 8*
PAWP, mm Hg (n = 2,187)	9 ± 4y	22 ± 5	24 ± 6*
DPG, mm Hg(n = 2,147)	19 ± 12y	12 ± 6	−1 ± 5*
Transpulmonary gradient, mm Hg(n = 2,146)	35 ± 15y	25 ± 10	12 ± 5*
PVR, Wood units (n = 2,175)	8.6 ± 5.0y	5.8 ± 3.2	2.6 ± 1.6*
Cardiac index, l/min/m2 (n = 2,018)	2.5 ± 0.8	2.5 ± 0.8	2.7 ± 0.9*
Stroke volume, ml(n = 1,105)	60 ± 24	64 ± 30	71 ± 30*
PA oxygen saturation, %(n = 2,051)	64 ± 9y	61 ± 10	63 ± 10*
Pulmonary arterial compliance, ml/mm Hg(n = 1,036)	1.6 ± 1.0y	2.4 ± 1.8	2.7 ± 1.7*
RC time, s (n = 1,013)	0.67 ± 0.22y	0.61 ± 0.28	0.37 ± 0.19*

^*p < 0.05 for Ipc-PH vs. Cpc-PH;

^yp < 0.05 for PAH vs. Cpc-PH.

BP = blood pressure; PA = pulmonary arterial; PVR = pulmonary vascular resistance; RA = right atrial; RC = resistance-compliance. Other abbreviations as in Table 1.