Table 4 Multivariate logistic regression analysis of factors independently associated with hospital mortality

Age (years)

1.026 (1.014–1.039)

< 0.001

1.013 (0.986–1.040)

0.356

1.062 (1.030–1.096)

< 0.001

Male gender

1.611 (1.101–2.356)

0.014

0.879 (0.446–1.731)

0.709

2.074 (1.315–3.269)

0.002

ICU admission source: Medical ward

1.650 (1.092–2.493)

0.018

2.330 (0.993–5.464)

0.052

1.393 (0.864–2.245)

0.174

APACHE II scores

1.079 (1.055–1.105)

< 0.001

1.080 (1.038–1.124)

< 0.001

1.096 (1.066–1.127)

< 0.001

Hospital LOS (days)

0.984 (0.977–0.992)

< 0.001

0.995 (0.982–1.008)

0.446

0.986 (0.978–0.994)

< 0.001

 Barotrauma ^a

10.613 (2.942–38.285)

< 0.001

14.561 (2.619–80.957)

0.002

9.075 (1.530–53.820)

0.015

 VAP

1.763 (1.103–2.819)

0.018

2.199 (0.916–5.281)

0.078

2.004 (1.182–3.397)

0.010

 Reintubation

2.271 (1.028–5.021)

0.043

1.974 (0.396–9.849)

0.407

2.541 (1.052–6.133)

0.038

 PMV ^b

1.869 (1.047–3.335)

0.034

2.543 (0.974–6.640)

0.057

1.493 (0.754–2.956)

0.250

Withhold/withdraw life sustaining treatments

10.928 (6.629–18.016)

< 0.001

17.021 (7.617–38.037)

< 0.001

9.715 (5.212–18.109)

< 0.001