. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: Circ Cardiovasc Imaging. 2013 Oct 4;6(6):1001–1008. doi: 10.1161/CIRCIMAGING.112.000328

Table 4.

Multivariable Cox Proportional-Hazards Analysis for Predicting Adverse Outcome

Variables^*	Hazard Ratio ^†	(95% CI)	p Value
NYHA class III–IV	2.87	1.27 – 6.49	0.011
MV area (cm²)	0.62	0.50 – 0.77	<0.001
C_n (mL/mmHg)	0.23	0.06 – 0.87	0.031
MV area and C_n ^†	1.15	1.04 – 1.27	0.007

Abbreviations as in Table 3

^†

hazard ratio per 1 SD increase

^‡

Interaction between MV area by planimetry and C_n