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Table 2 The multivariate Cox proportional hazards model of writing a DNR order

From: Physician workload associated with do-not-resuscitate decision-making in intensive care units: an observational study using Cox proportional hazards analysis

 

Hazard Ratio*

95% CI for Hazard Ratio

p value

Lower

Upper

Gender

 Male

0.93

0.60

1.44

0.75

 Female

1.00

–

–

–

Age, years

1.01

0.99

1.03

0.14

Religion

 Others

0.62

0.29

1.32

0.21

 Buddhist/Daoist

0.63

0.29

1.35

0.23

 Christian/Catholic

1.00

–

–

–

Education, years

  > 12

0.79

0.37

1.67

0.54

 1–12

0.71

0.37

1.34

0.29

 0

1.00

–

–

–

Marital status

 Married

0.84

0.55

1.28

0.41

 Others

1.00

–

–

–

Working fulltime

 Yes

0.77

0.47

1.25

0.29

 No

1.00

–

–

–

Residence

 Rural area

1.96

0.93

4.14

0.08

 Urban area

1.00

–

–

–

Diagnosis

 Non-operative, cardiac failure/insufficiency

1.71

1.00

2.91

0.05

 Non-operative, others

2.30

0.87

6.06

0.09

 Post-operative, major surgery

0.82

0.40

1.65

0.57

 Post-operative others

1.00

–

–

–

TISS

1.02

1.00

1.03

0.03

Physician workload (number of patients physician cared per day)

 ≧1

0.59

0.39

0.89

0.01

  < 1

1.00

–

–

–

Physician age, years

0.99

0.97

1.02

0.54

  1. Abbreviations: TISS Therapeutic Intervention Scoring System, CI confidence interval
  2. *Adjusted for all above variables