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Table 2 Outcome comparison between the study groups, according to admission diagnosis

From: Impact of a nurses' protocol-directed weaning procedure on outcomes in patients undergoing mechanical ventilation for longer than 48 hours: a prospective cohort study with a matched historical control group

Outcomes

Protocol-directed weaning group (cases)

Physician-directed weaning group (controls)

P

Mechanical ventilation duration (days)

   Medicine

15.3 ± 13

23 ± 22.6

0.02

   Surgery

19.1 ± 15.2

17.4 ± 13.7

0.72

   Neurosurgery

18.9 ± 12.8

26.3 ± 23.1

0.29

   COPD

14.1 ± 14.6

24.9 ± 24

0.33

   Combined

16.6 ± 13

22.5 ± 21

0.02

ICU length of stay (days)

   Medicine

20.1 ± 13.7

27.7 ± 23

0.02

   Surgery

25 ± 17

23.3 ± 15.4

0.72

   Neurosurgery

23 ± 13

34 ± 24

0.09

   COPD

20.4 ± 14.6

28.5 ± 25

0.47

   Combined

21.6 ± 14.3

27.6 ± 21.7

0.02

  1. Values are expressed as mean ± standard deviation. COPD, chronic pulmonary obstructive disease; ICU, intensive care unit.