. Author manuscript; available in PMC: 2020 May 1.

Published in final edited form as: Heart Lung Circ. 2018 Apr 17;28(5):752–760. doi: 10.1016/j.hlc.2018.04.280

Table 3:

Bivariable (Univariable) Cox Regression Analysis for Survival

	HR (95% CI)	Chi Square χ²	P value
PAPi (per 1 unit)	0.955 (0.927–0.983)	9.6	0.002
PHC-RISK (per 0.01)	0.954 (0.934–0.974)	19.2	<0.0001
BMI (per kg/m2)	0.959 (0.935–0.984)	10.1	0.002
RVSWI (g/m²)	0.965 (0.941–0.990)	7.6	0.006
PAC (per ml/mm Hg)	0.529 (0.378–0.740)	13.8	0.002
PCWP (per mm Hg)	1.005 (0.970–1.041)	0.08	0.78
RAP (per mm Hg)	1.064 (1.037–1.092)	22.6	<0.0001

BMI, body mass index; PAC, pulmonary artery capacitance; PCWP, pulmonary capillary wedge pressure; PVR, pulmonary vascular resistance; RAP, right atrial pressure; RVSWI, right ventricle stroke work index