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. 2008 May 2;12(3):R62. doi: 10.1186/cc6890

Table 3.

Bacteria associated with ventilator-associated tracheobronchitis episodes

Intention to treat Modified intention to treat
Antibiotic treatment
n = 22
No antibiotic treatment
n = 36
Antibiotic treatment
n = 18
No antibiotic treatment
n = 26
Microorganisms, number 27 39 22 29
Polymicrobial VAT 5 (22) 3 (8) 4 (22) 3 (11)
MDR bacteria 10 (45) 17 (47) 9 (50) 14 (53)
Gram-negative 20 (90) 27 (75) 16 (88) 20 (76)
Pseudomonas aeruginosa 8 (36) 11 (30) 7 (31) 9 (34)
Enterobacter species 2 (9) 3 (8) 2 (11) 3 (11)
Escherichia coli 3 (13) 3 (8) 1 (5) 2 (7)
Proteus mirabilis 3 (13) 1 (2) 2 (11) 1 (3)
Citrobacter freundii 1 (4) 2 (5) 1 (5) 1 (3)
Acinetobacter baumannii 0 (0) 2 (5) 0 (0) 2 (7)
Morganella morgani 1 (4) 2 (5) 1 (5) 1 (3)
Hemophilus influenzae 0 (0) 1 (2) 0 (0) 1 (3)
Stenotrophomonas maltophilia 1 (4) 1 (2) 1 (5) 0 (0)
Klebsiella oxytoca 1 (4) 1 (2) 1 (5) 0 (0)
Gram-positive 7 (31) 12 (33) 6 (33) 9 (34)
 Methicillin-resistant Staphylococcus aureus 3 (13) 6 (16) 3 (16) 5 (19)
 Methicillin-sensitive S. aureus 3 (13) 4 (11) 2 (11) 4 (15)
Streptococcus pneumoniae 1 (4) 2 (5) 1 (5) 0 (0)

P > 0.2 for all comparisons (antibiotic versus no antibiotic treatment). Results are presented as number (percentage) unless otherwise indicated. MDR, multidrug-resistant; VAT, ventilator-associated tracheobronchitis.