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Table 1 Baseline characteristics in the study patients

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

Physiological parameters

Protocol-directed weaning group (cases)

Physician-directed weaning group (controls)

Patients (n)

104

104

Male sex (n [%])

62 (60)

62 (60)

Age (years; mean ± SD)

57 ± 18

56 ± 18

SAPS II (mean ± SD)

49 ± 18

49 ± 18

Admission diagnosis (n [%])

   Medicine

54 (52)

63 (61)

   Surgery

25 (24)

20 (19)

   Neurosurgery

19 (18)

16 (15)

   COPD

6 (6)

5 (5)

  1. Matching was successful for all parameters, and patients' physiological parameters were similar between groups. Admission diagnoses were similarly distributed between groups. COPD, chronic pulmonary obstructive disease; SAPS, Simplified Acute Physiology Score; SD, standard deviation.
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Critical Care

ISSN: 1364-8535