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Table 1 Patient, infection, and pathogen characteristics among critically ill patients with bloodstream infection

From: 7 versus 14 days of antibiotic treatment for critically ill patients with bloodstream infection: a pilot randomized clinical trial

Characteristica N (%), Median (IQR)
Patient characteristic
 Male sex 63 (55)
 Age in years 67 (57–78)
 APACHE II Score 22 (18–26)
 Baseline vasopressor use 60 (52)
 Admission category
  Medical 78 (68)
  Surgical 24 (21)
  Trauma 6 (5)
  Neurological/neurosurgical 6 (5)
  Burns 1 (1)
 Comorbidity
  Coronary artery disease 23 (20)
  Congestive heart failure 16 (14)
  Arrhythmia 15 (13)
  Peripheral vascular disease 14 (12)
  Diabetes mellitus 40 (35)
  Renal insufficiency 13 (11)
  Dialysis dependency 4 (4)
  Chronic obstructive pulmonary disease 16 (14)
  Liver disease 8 (7)
  Obesity 16 (14)
  Solid malignancy 18 (16)
  Leukemia/lymphoma 1 (1)
  Steroids/immunosuppression 10 (9)
Infection characteristics
 Acquisition of bacteremia  
  Community-acquired 69 (60)
  Hospital-acquired 19 (17)
  ICU-acquired 27 (24)
 Source of bacteremia
  Lung 31 (27)
  Intra-abdominal/hepato-biliary 29 (25)
  Urinary tract 26 (23)
  Vascular-catheter-related 9 (8)
  Skin and/or soft tissue 4 (3)
  Other 4 (3)
  Undefined/unknown 12 (10)
Top 10 most commonly isolated pathogens in blood culturesb
  Escherichia coli 28 (22)
  Klebsiella spp. 18 (14)
  Enterococcus spp. 17 (13)
  Streptococcus pneumoniae 13 (10)
  Coagulase-negative staphylococci 12 (9)
  Enterobacter spp. 6 (5)
  Pseudomonas spp. 4 (3)
  Serratia spp. 4 (3)
  Citrobacter spp. 3 (2)
  Streptococcus anginosus group 3 (2)
  1. aAll data are presented as medians and interquartile ranges (IQR) unless otherwise specified
  2. bA total of 24 different bacterial species were isolated among the index blood cultures of the 115 patients; the denominator for these percentages is all organisms isolated from patients’ index blood cultures