Table 3 Cox regression (bivariable and multivariable) analyses of variables associated with death at sixty days

SAPS2 > 43

1.76 (1.03–3.00)

0.038

1.93 (1.12–3.34)

Chronic pulmonary disease

1.68 (0.93–3.04)

0.086

–

Liver cirrhosis

1.89 (0.86–4.17)

0.11

–

Ab < 3 mo., broad-sp. > 10 d

2.21 (1.31–3.71)

0.003

–

C3G < 3 mo

1.64 (0.93–2.90)

0.087

–

Carbapenem < 3 mo

2.59 (1.11–6.06)

0.03

–

Charlson > 2

1.75 (1.04–2.95)

0.034

–

ESBL colonization at admission

1.56 (0.92–2.63)

0.10

–

Septic shock associated with nosocomial pneumonia

2.86 (1.68–4.85)

0.0001

2.81 (1.66–4.78)

VAP

0.48 (0.24–0.96)

0.037

0.48 (0.24–0.98)

ESBL-PE ICUAP

1.57 (0.93–2.64)

0.091

1.15 (0.65–2.05)

ICU-acquired infection before ICUAP

0.51 (0.28–0.95)

0.033

0.52 (0.28–0.97)

Others antibiotics between colonization and pneumonia

1.49 (0.89–2.52)

0.13

–

Appropriate empirical antimicrobial therapy^a

1.05 (0.56–1.95)

0.88

0.66 (0.34–1.27)