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Table 4 Constituent ratios of pathogens isolated in patients with VAP

From: Risk factors for ventilator-associated pneumonia due to multi-drug resistant organisms after cardiac surgery in adults

Pathogenic bacterium

Number of strains

[n (%)a]

MDRO

[n (%)b]

Non-MDRO

[n (%)c]

Total number

60(100)

33(55.0)

27(45.0)

Gram-negative bacteria

54(90.0)

32(59.3)

22(40.7)

Acinetobacter baumannii

24 (40.0)

23(95.8)

1(4.2)

Klebsiella pneumoniae

10 (16.7)

3(30.0)

7(70.0)

Enterobacter cloacae

Others

5(8.3)

15(25.2)

1(20.0)

5(333.3)

4(80.0)

10(666.7)

Gram-positive bacteria

1(1.7)

1(100)

0(0.0)

Streptococcus pneumoniae

1(1.7)

1(100)

0(0.0)

Fungi

5(8.3)

0(0.0)

5(100)

Candida albicans

2(3.3)

0(0.0)

2(100)

Candida tropicalis

3(5.0)

0(0.0)

3(100)

  1. a: Number of strains detected and percentage of the total number of strains; b: Number of MDR strains detected and the percentage of the strains; c: Number of non-MDR strains detected and the percentage of the strains