Table 5. Microorganisms responsible for ventilator-associated pneumonia.

Microorganisms	Value (n=116)
Gram-negative bacilli	91 [78]
Pseudomonas aeruginosa	28 [24]
Klebsiella sp.	18 [16]
Escherichia coli	11 [9]
Enterobacter sp.	9 [8]
Stenotrophomonas maltophilia	6 [5]
Heamophilus influenzae	6 [5]
Serratia sp.	3 [3]
Proteus mirabilis	3 [3]
Acinetobacter baumannii	2 [2]
Citrobacter sp.	2 [2]
Moraxella catarrhalis	1 [1]
Morganella morganii	1 [1]
Burkholderia dolosa	1 [1]
Gram-positive cocci	17 [15]
Methicillin-sensitive S. aureus	13 [11]
Methicillin-resistant S. aureus	4 [3]

Results are presented as n [%].