Table 6.

Logistic Regression Model to Quantify Effect of Beta-Lactam Receipt on 30-Day and 90-Day Mortality Rates in Patients With MSSA Bacteremia While Adjusting for Confounders

Variable	Odds Ratio (95% CI)	P Value
30-d mortality model
Beta-lactam	0.26 (0.12–0.54)	<.01
SOFA score	1.30 (1.14–1.47)	<.01
Age > 65 y	2.03 (0.96–4.30)	.06
90-d mortality model
Beta-lactam	0.41 (0.21–0.81)	.01
SOFA score	1.30 (1.16–1.46)	<.01
Age > 65 y	1.88 (0.97–3.64)	.06
CHF	1.94 (1.01–3.72)	.05
Cancer	2.48 (1.26–4.90)	.01

Abbreviations: CHF, congestive heart failure; CI, confidence interval; MSSA, methicillin-susceptible Staphylococcus aureus; SOFA, sequential organ failure assessment.