Table 3 The predictors of DNR document using logistic regression model (n = 337)-Forward conditional method

 75–84 v.s  65–74

3.60

1.19

10.81

0.02

≥85 v.s 65–74

7.53

2.56

22.13

< 0.001

Gender

Male v.s Female

1.06

0.61

1.83

0.82

 OPD v.s ED

1.13

0.50

2.51

0.763

 Transfer from other department v.s ED

2.84

1.43

5.64

0.003

ECOG

2–4 v.s 0–1

2.77

1.57

4.91

< 0.001

ADL stratification

< 50 v.s ≥ 50

4.05

2.19

7.47

< 0.001

Nutrition Score stratification

≥ 2 v.s < 2

3.70

2.01

6.82

< 0.001

Albumin level stratification (g/dL)

< 3 v.s ≥ 3

5.13

2.76

9.50

< 0.001

Missing v.s ≥ 3

0.30

0.10

0.89

0.031

CCI stratification

> 2 v.s ≤ 2

3.13

1.77

5.55

< 0.001

Hospitalization day stratification

> 10 v.s ≤ 10

5.46

2.92

10.20

< 0.001

Geriatric OPD times in the past year

1.07

1.01

1.15

0.02

Geriatric OPD stratification

Yes v.s No

1.95

1.13

3.37

0.01

ED or hospitalization times in the past year

1.07

0.98

1.17

0.09

ICU admission

Yes v.s No

6.11

3.00

12.43

< 0.001

Intubation

Yes v.s No

2.19

0.89

5.38

0.08

Vasopressor

Yes v.s No

3.62

1.07

12.25

0.03