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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

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

  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
  1. 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