Table 3.

Multivariate regression analysis for risk factors

Variables	OR	SE	P value	95% CI
Pre-Procedural SBP	0.95	0.01	< 0.01	[0.93 0.96]
Pre-Procedural HR	1.05	0.01	< 0.01	[1.03 1.07]
Killips classification
Killips = 2 vs =1	2.34	0.76	0.01	[1.24 4.44]
Killips = 3 vs =1	5.30	2.86	0.02	[1.27 22.1]

SBP systolic blood pressure, HR heart rate