Skip to main content

Table 2 Primary and secondary outcomes by intensive care unit (ICU) staffing model.

From: The effect of an intensive care unit staffing model on tidal volume in patients with acute lung injury

Patient outcome*

ICU model

p value

 

Open (n = 277)

Closed (n = 482)

 

Day 3 tidal volume

   

   Mean (mL/Kg)

10.8 (2.9)

9.3 (2.3)

< 0.001

   ≤ 6.5 mL/kg (%)

5

11

0.004

   < 8 mL/kg (%)

16

28

< 0.001

   ≥ 12 mL/kg (%)

31

10

< 0.001

Presence in charted differential diagnosis (%)

   

   Acute lung injury

34

37

0.47

   Acute lung injury or oedema

46

47

0.83

Height measured (%)

81

80

0.90

Weight measured (%)

99

99

1.00

Plateau pressure measured by day 3 (%)

69

80

< 0.001

Day 3 plateau pressure, mmHg‡

27 (8)

25 (8)

< 0.001

Day 3 PEEP, median (IQR) †

5 (5 to 8)

5 (5 to 10)

0.22

  1. *represents mean (standard deviation) unless otherwise noted
  2. † IQR = interquartile range; PEEP = positive end expiratory pressure (missing in n = 81).
  3. ‡ Data available for 167 patients in open and 301 patients in closed ICUs