Table 7 Proportional hazard assumption test by Schoenfeld residuals for each predictor variable

Age

0.02903

0.14

1

0.7108

Diagnosis

0.01004

0.02

1

0.9002

GCS score

-0.01893

0.06

1

0.8060

Vasopressor

-0.11868

2.51

1

0.1134

Tracheostomy

-0.03377

0.21

1

0.6505

Pneumonia

-0.00008

0.00

1

0.9992

CPR

0.13534

2.99

1

0.0838

Heart rate

-0.00078

0.00

1

0.9914

SBP

0.03049

0.19

1

0.6620

Temperature

0.05503

0.61

1

0.4330

Respiratory rate

-0.01013

0.03

1

0.8707

DBP

-0.02505

0.11

1

0.7416

Comorbidity

0.02663

0.11

1

0.7378

Global test

21.96

13

0.0795