Table 5.

Results of analyzed tracheal aspirates.

	Purulent sputum (n)	Positive tracheal aspirate culture (n)	Multiple bacterial growth (n)	Pathogens
Suspected VAP	13/36	31/36	8/36
Non-confirmed VAP	9/26	23/26	7/26	15x gram-positive bacteria: 6x Staphylococcus epidermidis, 4x Entero-coccus faecalis, 4x Staphylococcus aureus, 1x Staphylococcus haemolyticus 12x gram-negative bacteria: 3x Escherichia coli, 2x Acinetobacter, 1x Enterobacter aerogenes, 1x Enterobacter cloacae, 1x Pseudomonas aeruginosa, 1x Klebsiella pneumoniae, 1x Klebsiella oxytoca, 1x Stenotrophomonas maltophilia, 1x Serratia marcescens Other: 2x Ureaplasma urealyticum1x Candida albicans 3x no bacterial growth
Confirmed VAP	4/10	8/10	1/10	4x gram-positive bacteria: 1x Staphylococcus aureus, 1x Staphylococcus haemolyticus, 1x Enterococcus faecalis, 1x Bacillus cereus 5x gram-negative bacteria: 3x Escherichia coli, 1x Pseudomonas aeruginosa, 1x Stenotrophomonas maltophilia 2x no bacterial growth