Table 3.

Univariate and multivariate linear regression comparing association between right heart catheterization pulmonary capillary wedge pressure and cardiac magnetic resonance pulmonary capillary wedge pressure

		Univariate		Multivariatea
	(R)	Regression coefficient	P-value	Regression coefficient	SE	P-value
LV end-diastolic volume (mL)	0.32	0.05	<0.0001	—	—	—
LV end-systolic volume (mL)	0.23	0.07	<0.0001	—	—	—
LV stroke volume (mL)	0.29	0.07	<0.0001	—	—	—
LV ejection fraction (%)	−0.03	−0.02	0.40	—	—	—
LV mass (g)	0.28	0.05	<0.0001	0.023	0.006	0.0004
Left atrial volume (mL)	0.55	0.08	<0.0001	0.072	0.005	<0.0001
RV end-diastolic volume (mL)	0.14	0.02	0.0003	—	—	—
RV end-systolic volume (mL)	0.05	0.006	0.21	—	—	—
RV stroke volume (mL)	0.23	0.05	<0.0001	—	—	—
RV ejection fraction (%)	0.08	0.04	0.031	—	—	—
Constant		—	—	6.14	—	—
R 2		—	—	0.31	—	—
Multiple correlation coefficient		—	—	0.56	—	—

^aBackward regression.

— represents P < 0.0001. R, Pearson correlation; SE, standard error of regression coefficient; LV, left ventricular; RV, right ventricular; R² = coefficient of determination.