Table 3.

Univariate Logistic Regression Predictors of Mortality^a

	14-Day In-Hospital Mortality		30-Day In-Hospital Mortality
Predictor	OR [95% CI]	P Value	OR [95% CI]	P Value
Demographics and patient characteristics
Age	1.04 [1.00–1.10]	.09	1.02 [0.98–1.08]	.34
BMI, kg/m2	1.05 [0.97–1.15]	.23	1.02 [0.94–1.12]	.60
Hispanic	1.99 [0.57–7.38]	.29	2.17 [0.57–9.45]	.27
Pitt bacteremia score	1.44 [1.12–1.93]	.01	1.56 [1.19–2.18]	.003
Mechanical ventilation	1.66 [0.41–6.93]	.47	2.04 [0.48–8.58]	.33
Abnormal chest x-ray	0.56 [0.07–3.25]	.53	0.35 [0.02–2.52]	.37
Central venous catheter	4.36 [1.22–17.6]	.03	4.89 [1.21–25.3]	.04
Bacteremia characteristics
MSSA bacteremia	2.58 [0.75–9.38]	.14	3.24 [0.88–13.2]	.09
Pneumonia source	0.42 [0.08–1.99]	.28	0.80 [0.16–4.45]	.78
Time from blood culture to antibiotic initiation	1.00 [0.96–1.04]	.94	1.00 [0.97–1.05]	.82
Hospital-onset bacteremiab	3.24 [0.88–13.2]	.09	1.87 [0.48–7.28]	.36

Abbreviations: MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-susceptible Staphylococcus aureus; OR, odds ratio.

^aPredictors of 14-day or 30-day hospital mortality were identified by univariate logistic regression.

^bHospital-onset bacteremia was defined as a positive blood culture on or after the fourth day after hospital admission.