Table 3 Factors influencing signing of DNR^a letter of intent

Age group (Years)

 20–64

Reference

  ≥ 65

0.592

0.460–0.763

 < 0.001^*

Highest education level

 No formal education

0.574

0.374–0.880

0.011^*

 Primary to high school

0.998

0.717–1.389

0.991

 Diploma or above

Reference

Children number

 0

Reference

 1–2

0.810

0.522–1.258

0.349

  ≥ 3

0.575

0.370–0.894

0.014^*

First DNR order to death length (days)

  ≤ 7

0.397

0.283–0.556

 < 0.001^*

 8–29

0.677

0.491–0.933

0.017*

  ≥ 30

Reference

Hospice palliative care

 No

Reference

 Yes

1.771

1.257–2.497

0.001^*

Last admitted ward

 Ordinary

Reference

 Hospice

0.666

0.437–1.014

0.058

 Intensive care unit

0.347

0.191–0.630

0.001^*

Final discharge status

 Death

Reference

 Impending Death

0.945

0.702–1.273

0.710

Last admission service specialty

 Surgery

Reference

 Internal medicine

1.082

0.750–1.559

0.674

 Family medicine

2.714

1.659–4.438

 < 0.001^*