TABLE 2

Demographics and clinical characteristics

CharacteristicValue for
case patientsa
Mean age, yr (range)60 (23–81)
Male8 (57)
Comorbid conditions
 Transplant recipient5 (36)
 Diabetes mellitus4 (29)
 Renal insufficiency4 (29)
 Chronic heart disease3 (21)
 Malignancy2 (14)
Health care-associated risk factors
 ICU stay > 48 h9 (64)
 Any ICU stay11 (79)
 Median length of stay prior to infection,
days (range)
31 (3–144)
Prior anti-Gram-negative antibiotic13 (93)
 Beta-lactam/beta-lactamase inhibitor8 (57)
 Fluoroquinolone7 (50)
 Broad-spectrum cephalosporin5 (36)
 Carbapenem5 (36)
 Monobactam2 (14)
Clinical infection
 Bacteremia7 (50)
 Urinary tract infection7 (50)
 Pneumonia7 (50)
 Intra-abdominal infection3 (21)
 Mortality7 (50)
  Bacteremia6 (86)
  • a n = 14. Data are no. (%) of patients unless otherwise indicated.