Risk for subsequent infection and mortality after hospitalization among patients with multidrug-resistant gram-negative bacteria colonization or infection

Table 4 Species-Specific Risk for Subsequent Infection with Causative Multidrug-resistant Gram-negative Bacteria (MDRGNB) or Infection Site Identical to Prior MDRGNB Culture during Index Hospitalization

	Subsequent MDR-GNB infection of concordant species or isolation site
	Hazard Ratio	(95% C.I.)^a	P value
Initial MDRGNB species
Proteus mirabilis	231.29	(32.10–1666.31)	< 0.001
Pseudomonas aeruginosa	56.99	(21.53–150.88)	< 0.001
Escherichia coli	36.83	(17.59–77.14)	< 0.001
Klebsiella pneumoniae	15.83	(5.17–48.48)	< 0.001
Acinetobacter species	15.25	(7.58–30.69)	< 0.001
Enterobacter species	5.83	(0.73–46.62)	0.10
Initial MDRGNB isolation site
Urine	18.45	(8.25–41.27)	< 0.001
Respiratory tract	10.52	(6.81–16.26)	< 0.001
Blood	8.92	(1.14–69.83)	0.037

^aCalculated as hazard risk between patients with positive culture for the indicated MDRGNB species or isolation site and those without any MDRGNB culture during index hospitalization

ISSN: 2047-2994