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Table 2 Microbiological identification and survival in quantitative endotracheal aspirate in 75 patients with ventilator-associated pneumonia

From: Decreases in procalcitonin and C-reactive protein are strong predictors of survival in ventilator-associated pneumonia

Microorganisms

Survivors (n = 58)

Non-survivors (n = 34)

Total (n = 92)a

Pseudomonas aeruginosa

9 (15.5)

6 (17.7)

15 (16.3)

Oxacillin-resistant Staphylococcus aureus

8 (13.8)

6 (17.7)

14 (15.2)

Oxacillin-sensitive Staphylococcus aureus

7 (12.1)

1 (3.0)

8 (8.7)

Stenotrophomonas maltophilia

3 (5.2)

3 (8.8)

6 (6.5)

Acinetobacter sp.

4 (6.9)

1 (3.0)

5 (5.4)

Enterobacter sp.

4 (6.9)

1 (3.0)

5 (5.4)

Klebsiella pneumoniae

2 (3.5)

3 (8.8)

5 (5.4)

Haemophilus sp.

4 (6.9)

0

4 (4.4)

Escherichia coli

1 (1.7)

2 (5.9)

3 (3.3)

Citrobacter koseri

2 (3.5)

0

2 (2.2)

Proteus mirabilis

2 (3.5)

0

2 (2.2)

Other Gram-negative nonfermenting bacilli

1 (1.7)

0

1 (1.1)

Acinetobacter junii

1 (1.7)

0

1 (1.1)

Streptococcus agalactiae

1 (1.7)

0

1 (1.1)

Serratia sp.

1 (1.7)

0

1 (1.1)

Moraxella sp.

1 (1.7)

0

1 (1.1)

Streptoccocus pneumoniae

1 (1.7)

0

1 (1.1)

Burkholderia cepacea

0

1 (3.0)

1 (1.1)

Unidentified

6 (10.4)

10 (29.4)

16 (17.4)

  1. a In 17 patients more than one microorganism was identified.
  2. Quantitative endotracheal aspirate was deemed positive when ≥105 colony-forming units/ml. Not all percentages add up to 100 because of rounding. Results are given as frequency (percentage).