Epidemiology and outcomes of ventilator-associated pneumonia in northern Brazil: an analytical descriptive prospective cohort study

Table 2 Frequency of multiresistant bacteria from 32 VAP patients and their relation to death

Microorganism	^aFrequency n (%)	^bMultiresistance 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.

ISSN: 1471-2334