Table 2

Frequency of multiresistant bacteria from 32 VAP patients and their relation to death
Microorganism a Frequency n (%) b Multiresistance n (%) Death n (%)
Gram-positive
  Staphylococcus aureus 5 (15.6) 4 (80.0) 5 (100)
Gram-negative
  Pseudomonas aeruginosa 11 (34.4) 8 (72.7) 8 (72.7)
  Acinetobacter spp. 11 (34.4) 9 (81.8) 9 (81.8)
  Klebsiella spp. 5 (15.6) 2 (20.0) 4 (80.0)
  Stenotrophomonas maltophilia 2 (6.2) - 1 (50.0)
  Sphingomonas paucimobilis 2 (6.2) - 1 (50.0)
  Escherichia coli 1 (3.1) - 1 (100)
  Enterobacter spp. 2 (6.2) - 2 (100)
P value (G test) c 0.003 0.0083
Total 39 23 31

a Spearman correlation between death and frequency of microorganisms (ρ = 0.905, P = 0.0001).

b Spearman correlation between death and presence of multiresistance (ρ = 0.947, P = 0.00144).

c G Test of independence is evaluating the proportion of different microorganisms among them.

Resende et al.

Resende et al. BMC Infectious Diseases 2013 13:119   doi:10.1186/1471-2334-13-119

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