Table 4 Multivariate analysis, factors associated with ICU and hospital death after adjusting on potential confounding factors

ICU death

At least one chronic illness

2.47

1.24 to 4.92

0.01

Fluoroquinolones prior VAP onset

2.45

0.91 to 6.63

0.08

Positive blood culture

5.11

1.16 to 22.6

0.03

LOD two days before infection (per point)

1.17

1.01 to 1.37

0.04

SAPS at admission (per point)

1.03

1.00 to 1.05

0.04

PRPA-VAP

0.73

0.32 to 1.69

0.46

Hospital Death

At least one chronic illness

2.29

1.16 to 4.54

0.02

Fluoroquinolones prior VAP onset

2.89

1.04 to 8.04

0.04

Positive blood culture

4.58

0.96 to 21.9

0.05

SAPS II at admission

1.04

1.01 to 1.06

0.01

PRPA-VAP

0.87

0.38 to 1.99

0.74