Risk Factors for and Clinical Outcomes of Polymicrobial Acinetobacter baumannii Bloodstream Infections

Table 3

Logistic regression analysis of factors associated with polymicrobial AB-BSI.

Characteristics	Univariable analysis		Multivariable analysis
	Unadjusted OR (95% CI)	value	Adjusted OR (95% CI)	value
years	0.668 (0.450, 0.993)	0.046	0.855 (0.546, 1.338)	0.493
Male sex	0.994 (0.646, 1.531)	0.979
Diabetes mellitus	1.236 (0.715, 2.136)	0.449
Chronic kidney disease	1.189 (0.653, 2.166)	0.571
Chronic liver disease	1.211 (0.600, 2.484)	0.582
COPD^a or severe asthma	0.866 (0.490, 1.529)	0.619
Chronic cardiac insufficiency	0.779 (0.492, 1.231)	0.284
Solid tumour	1.936 (1.027, 3.651)	0.028	2.120 (0.973, 4.620)	0.059
Trauma	1.250 (0.779, 2.008)	0.355
Burn injury	2.313 (1.664, 3.214)	<0.001	3.569 (1.954, 6.516)	<0.001
Hypertension	0.808 (0.534, 1.222)	0.313
Cerebrovascular accident	1.011 (0.652, 1.568)	0.962
CCI^b	0.965 (0.869, 1.071)	0.500	1.119 (0.984, 1.274)	0.087
APACHE II score	0.986 (0.956, 1.016)	0.352	0.980 (0.934, 1.029)	0.423
SOFA score	0.991 (0.942, 1.042)	0.721	0.986 (0.925, 1.052)	0.671
Pitt bacteraemia score	1.017 (0.936, 1.104)	0.696	1.083 (0.969, 1.212)	0.162
Medical	0.443 (0.104, 1.878)	0.269
Surgical	0.768 (0.419, 1.405)	0.391
ICU	1.421 (0.806, 2.504)	0.225
Hyperalimentation	0.886 (0.593, 1.325)	0.556
Mechanical ventilation ()	1.100 (0.528, 2.293)	0.798
Surgery	1.198 (0.802, 1.790)	0.377
Blood transfusion	0.794 (0.535, 1.180)	0.254
Renal replacement therapy	0.884 (0.537, 1.453)	0.626
Carbapenem exposure	0.821 (0.552, 1.223)	0.333
Central line	1.256 (0.575, 2.745)	0.567
Indwelling urinary catheter	0.741 (0.352, 1.562)	0.431
Drainage (any site)	0.909 (0.611, 1.351)	0.636
Prior hospital stay	1.005 (0.996, 1.015)	0.293
Nosocomial infection	0.603 (0.229, 1.588)	0.306

^aChronic obstructive pulmonary disorder. ^bCharlson Comorbidity Index.