TABLE 3.

Logistic regression analysis of the risk factors for 30-day mortality^a

Variable	Univariate analysis		Multivariate analysis
	OR (95% CI)	P value	OR (95% CI)	P value
Age	1.022 (0.984-1.060)	0.261
Male	1.820 (0.641-5.170)	0.261
Ethnic background
Caucasian	1.170 (0.436-3.142)	0.755
African American	0.506 (0.136-1.888)	0.311
Hispanic	0.871 (0.226-3.348)	0.840
Baseline serum creatinine concn	0.997 (0.722-1.376)	0.985
Length of prior hospital stay	1.009 (0.998-1.021)	0.116
Multidrug resistance	4.933 (1.748-13.922)	0.003	6.829 (1.945-23.984)	0.003
Appropriate empirical therapy	0.295 (0.093-0.943)	0.039
Baseline APACHE II score	1.157 (1.062-1.260)	0.001
Baseline APACHE II score ≥ 22	15.436 (3.539-67.329)	<0.001	29.034 (5.012-168.196)	<0.001
Comorbidities
Cardiovascular conditions	0.658 (0.209-2.072)	0.474
Respiratory conditions	3.039 (0.966-9.558)	0.057
Central nervous system conditions	1.132 (0.288-4.455)	0.859
Renal conditions	5.973 (2.065-17.280)	0.001
Diabetes mellitus	0.981 (0.365-2.641)	0.970
Immunosuppression	3.129 (1.157-8.462)	0.025	5.001 (1.430-17.495)	0.012
Source of bacteremia
Line	0.338 (0.041-2.760)	0.311
Lung	4.235 (1.522-11.787)	0.006
Urine	0.194 (0.024-1.543)	0.121
Wound	0.805 (0.211-3.097)	0.751
Abdomen	1.773 (0.501-6.278)	0.375

^aReceiver operating characteristic value of the final model, 0.820.