Table 3.

Determinants of RV systolic pressure differential in univariate and multivariate linear regression analysis

	B Coefficient (95% CI)*	P
Univariate
Ees/Ea	−11.99 (−16.62 to −0.7.37)	<0.001
Ea, mmHg/mL	22.26 (17.13 to 27.39)	<0.001
Ees, mmHg/mL	1.35 (−5.25 to 7.96)	0.69
τ, ms	0.072 (−0.16 to 0.31)	0.55
Stroke work, mL·mmHg	17.22 (11.34 to 23.12)	<0.001
Pulmonary arterial capacitance, mL/mmHg	−20.20 (−25.65 to −14.76)	<0.001
Pulmonary vascular resistance, Wood units	18.23 (14.64 to 21.80)	<0.001
Multivariate†
Ea, mmHg/mL	8.16 (0.42 to 15.91)	0.04
Stroke work, mL·mmHg	8.26 (3.10 to 13.42)	<0.001
Pulmonary vascular resistance, Wood units	10.91 (4.34 to 17.48)	0.001

CI, confidence interval; Ea, arterial elastance; Ees, end-systolic elastance; RV, right ventricular.

^*Unstandardized coefficients.

^†Adjusted with backward stepwise selection for all variables with P < 0.001 in univariate analysis.