Table 4 Mortality associated risk factors after propensity score-based weighting and multivariate analysis with a Cox proportional hazards model for time-dependent variable after weighting

Age

1.02 [1.01, 1.04]

0.021

Male

1.97 [1.12, 3.46]

0.018

Immunodepression

2.35 [1.35, 4.07]

0.0028

SOFA score [0–5]

Reference

–

SOFA score [6–8]

1.28 [0.67, 2.44]

0.448

SOFA score [8–13]

1.78 [0.97, 3.25]

0.062

SOFA score [13–21]

4.17 [2.20, 7.91]

 < 0.0001

Hospital acquired infection

1.94 [1.18, 3.2]

0.009