Table 3. Risk factors associated with antimicrobial resistance in P. aeruginosa bacteremia.

Risk factors			Adjusted OR (95% CI)	P
CRPA bacteremia
	Underlying cerebrovascular accident		4.2 (1.8–9.6)	0.001
	Previous exposure to
		Carbapenems	4.7 (1.6–13.5)	0.005
		Fluoroquinolones	2.7 (1.3–5.7)	0.009
		Glycopeptides	3.1 (1.1–8.8)	0.034
	Urinary tract infection		4.1 (1.9–8.8)	< 0.001
MDRPA bacteremia
	Underlying cerebrovascular accident		2.5 (1.1–5.5)	0.029
	Underlying solid cancer		0.5 (0.3–0.9)	0.017
	Device with ventilator		3.6 (1.2–10.7)	0.021
		With indwelling urinary catheter	2.3 (1.1–4.6)	0.021
	Previous exposure to
		Fluoroquinolones	2.4 (1.2–4.8)	0.015
		Glycopeptides	4.7 (1.9–11.2)	0.001
	Urinary tract infection		4.8 (2.1–10.8)	< 0.001
	Hepatobiliary tract infection		13.2 (6.0–28.9)	< 0.001
XDRPA bacteremia
	Age ≥ 70		2.3 (1.1–4.8)	0.022
	Underlying solid cancer		0.5 (0.2–1.0)	0.042
	Previous exposure to
		Fluoroquinolones	3.5 (1.7–7.5)	0.001
		Glycopeptides	2.9 (1.2–7.1)	0.016
	Urinary tract infection		3.6 (1.6–7.9)	0.001

OR = odds ratio, CI = confidence interval, CRPA = carbapenem-resistant P. aeruginosa, MDRPA = multidrug-resistant P. aeruginosa, XDRPA = extensively drug-resistant P. aeruginosa.