Table 2.

Univariate analysis for variables that are associated with postoperative infection

Variable	Odds ratio (95% confidence interval)	p value
Delayed sternal closure	3.14 (1.34–7.37)	0.01
Peritoneal drain	2.43 (1.06–5.56)	0.04
Postoperative steroids	2.24 (0.97–5.18)	0.06
AKI—measured creatinine	3.07 (1.31–7.19)	0.01
AKI—fluid corrected creatinine	4.56 (1.91–10.88)	0.0008
Ventilation duration (days)	1.28 (1.09–1.50)	0.0003
Cardiopulmonary bypass duration (min)	1.01 (1.00–1.03)	0.006
Ethnicity (Hispanic/Latino)	2.47 (1.05–5.78)	0.04

AKI acute kidney injury