Table 4 Fine and Gray multivariate analysis of factors associated with 30-day mortality after VAP diagnosis (n = 192). The five variables selected on the basis of univariate analyses (n = 192).

Enter method

MDR aetiology

0.33

1.39

0.77 to 2.50

0.28

ARDS before VAP

0.42

1.52

0.83 to 2.79

0.18

RRT before VAP

0.79

2.20

1.18 to 4.13

0.01

Charlson index of comorbidity

0.18

1.20

1.02 to 1.40

0.04

Shock on ICU admission

0.55

1.73

0.96 to 3.12

0.07

Forward and backward stepwise

RRT before VAP

0.99

2.69

1.18 to 4.28

0.001

Charlson index of comorbidity

0.19

1.21

1.03 to 1.41

0.02

Shock on ICU admission

0.62

1.73

1.03 to 3.35

0.04