Table 3.

Independent predictors of 30-day mortality before and after propensity matching

Variable	OR	95% CI	P value
Overall population
AKI	3.74	1.3-10.5	.01
Euroscore	1.27	1.07-1.52	<.01
Use of IABP	6.9	2.24-20.29	<.01
Propensity score–matched population
Use of IABP	7.52	2.08-27.14	<.01

OR, Odds ratio; CI, confidence interval; AKI, acute kidney injury; IABP, intra-aortic balloon pump.