Table 2.

Analysis of Risk factors for bacteremia caused by ESBL-producing group versus ESBL-nonproducing E. coli or Klebsiella spp.

	Non ESBL	ESBL	P-value	Crude odds ratio	95% CI	Adjusted odds ratio	95% CI
Use of any antibiotics within previous 1 mo	15 (33.3)	38 (73.1)	< 0.05	5.4	2.3–13.0	2.7	0.8–9.3
Use of extended-spectrum cephalosporin within previous 1 mo	7 (15.6)	27 (51.9)	< 0.05	5.8	2.2–15.5	2.4	0.7–9.0
Neutropenia (ANC < 500)	8 (17.8)	17 (34)	0.077	2.4	0.9–6.2	2.5	0.9–7.5
Presence of an indwelling central venous catheter	11 (34.4)	21 (40.4)	0.099	2.1	0.9–5.1	1.6	0.6–4.8