Table 2.

Logistic model for prediction of colistin rather than tigecycline use of the 294 enrolled patients

Variable	Odds ratio	95% confidence interval	p -value
Age (year)	0.99	0.98 – 1.01	.69
Male	1.83	1.02 – 3.31	.04
Baseline creatinine (mg/dL)	0.76	0.57 – 1.01	.06
Chronic kidney disease × Baseline creatinine	1.42	1.09 – 1.84	.01
Insulin use	1.55	0.82 – 2.93	.18
Malignancy	40.43	9.31 – 175.52	<.001

Estimated area under the ROC curve = 0.74.