TABLE 4.

Multivariate analyses of risk factors for tigecycline-nonsusceptible K. pneumoniae bacteremia

Variable	OR (95% CI)a	P
Urinary catheter	2.29 (0.72–7.32)	0.163
Prior exposure to third- or fourth-generation cephalosporinsb	7.36 (0.81–67.14)	0.077
Prior exposure to fluoroquinolonec	10.81 (1.26–93.13)	0.030
Prior exposure to metronidazole	5.60 (0.58–53.9)	0.136
Septic shock when bacteremia	0.47 (0.17–1.28)	0.139

^aOR, odds ratio; CI, confidence interval.

^bIncludes cefoperazone, ceftriaxone, cefotaxime, cefepime, and cefpirome.

^cIncludes ciprofloxacin, levofloxacin, and moxifloxacin.