Table 6.

Process of Care Variables Associated with Infection

Process of Care Variables*	HR (95% CI)	P Value
Second generation CEPH (yes/no)	0.70 (0.52, 0.94)	0.02
Post-operative antibiotics (vs 24–48 hrs)
0–24 hours	1.00 (0.72, 1.38)	0.98
> 48 hours	1.92 (1.28, 2.88)	0.002
Ventilation (vs. ≤24 hours)
24–48 hours	1.49 (1.04, 2.14)	0.03
>48 hours	2.45 (1.66, 3.63)	<0.001
Hyperglycemia (yes/no)	1.32 (1.01, 1.73)	0.04
PRBC (unit)		0.03
LVAD/Tx	0.99 (0.89, 1.11)
No LVAD/Tx	1.13 (1.07, 1.20)

Abbreviations: CI, confidence interval; CEPH, cephalosporin; HR, hazard ratio; PRBC, packed red blood cells; LVAD/Tx, left ventricular assist device or transplant surgery.

^*Model adjusted for baseline risk factors depicted in Table 4