TABLE 2.

Time-at-risk-adjusted odds of nonantibiotic covariates for isolation of any Klebsiella species included in the propensity score model

Variable	OR	95% CI	P
Age of >65 yr	1.73	1.30-2.31	0.001
Transfer from another health care facility	2.21	1.22-4.01	0.009
Surgery	1.38	1.03-1.85	<0.0001
ICU stay	11.74	6.35-21.69	<0.0001
Respiratory disease	5.94	3.37-10.46	<0.0001
Renal disease	4.63	2.25-9.54	<0.0001
Hepatic disease	2.33	1.06-5.13	0.036
Malignancy	1.62	1.09-2.41	0.017