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).

Predictor	Parameter estimate	SHR	CI	p value
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

ARDS = adult respiratory distress syndrome; CI = confidence interval; ICU = intensive care unit; MDR = multidrug resistant pathogen; RRT = renal replacement therapy; SHR = subdistribution hazard ratio; VAP = ventilator-associated pneumonia.