Multidrug resistant Acinetobacter baumannii: a descriptive study in a city hospital

BMC Infectious Diseases

Table 2 Risk factors for 247 isolates of multi-resistant Acinetobacter baumannii (all patients, N = 164)

Risk factor	MDRAB	Control	p-value¹	Odds	95% C.I²
	(N = 122)	(N = 42)		Ratio
Surgical admission	53	22	0.32	0.70	0.35-1.141
Age > 55	49	12	0.18	1.68	0.78 - 3.59
Male Gender	90	27	0.24	1.56	0.74 - 3.30
Institutionalized < 90 days prior to admission	91	32	0.84	0.92	0.41 - 2.08
Multiple Isolates	53	3	< 0.01	9.98	2.93-34.08
Mechanical Ventilation	65	3	< 0.01	14.82	4.35 - 50.57
Previous antibiotics	111	33	0.03	2.75	1.05 - 7.21
Quinolone	50	11	0.09	1.96	0.90 - 4.26
Co-morbidity³	111	33	0.03	2.75	1.05-7.21
COPD⁴	19	2	0.07	3.69	0.82 - 16.57
Neurologic impairment⁵	27	3	0.03	3.69	1.06 - 12.89
Diabetes mellitus	35	19	0.05	0.49	0.24 - 1.00
Mortality	36	1	< 0.01	17.24	1.70 - 83.33

¹ p-values derived from Fisher's exact test
² C.I. - 95% Confidence Interval
³ Congestive heart failure, chronic pancreatitis, peripheral vascular disease, coronary artery disease, chronic obstructive pulmonary disease, diabetes mellitus, end stage renal disease, asthma, cancer, obesity, hepatitis, human immunodeficiency virus
⁴COPD - Chronic Obstructive Pulmonary Disease
⁵Cerebrovascular accident, Traumatic brain injury, Alzheimer's disease, Spinal cord injury

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