Table 3

Outcomes by patient group

Outcome
All patients
ICU admissions
Non-ICU admissions
Pa
ALI
ARDS
Pb

ICU mortality
25/108 (23.1)
25/108 (23.1)
N/A

2/9 (22.2)
12/29 (41.4)
0.438
ICU length of stay
8 (4–19.5) (n = 104)
8 (4–19.5) (n = 104)
N/A

7.5 (5.3–22.5)
15 (7.5–36.5)
0.161
Duration of ventilation
7.5 (4–23) (n = 60)
7.5 (4–23) (n = 60)
N/A

6 (3–10)
17 (12–36.8)
0.035
Hospital mortality
99/815 (12.1)
29/108 (26.9)
70/707 (9.9)
<0.001
5/20 (25.0)
15/33 (45.5)
0.158
Hospital length of stay
10.0 (7–17)
21 (12–37.5)
9 (6–15)
<0.001
17 (10.0–42.0)
29 (13.3–63.8)
0.124
Cause of death







     Multiple organ failure
25 (25.3)
8 (27.6)
17 (24.3)
0.579
1 (20)
4 (26.7)
0.707
     Refractory hypotension
1 (1.0)
0
1 (1.4)

0
0

     Refractory hypoxemia
4 (4.0)
1 (3.4)
3 (4.3)

0
1 (6.7)

     Arrhythmia
2 (2.0)
1 (3.4)
1 (1.4)

0
0

     Withholding-withdrawal
58 (58.6)
14 (48.3)
44 (62.9)

4 (80)
7 (46.7)

     Brain death
2 (2.0)
1 (3.4)
1 (1.4)

0
1 (6.7)

     Other
7 (7.1)
4 (13.8)
3 (4.3)

0
2 (13.3)


ICU, intensive care unit; ALI, acute lung injury (PaO2/FiO2 200 to 300 mmHg); ARDS, acute respiratory distress syndrome; PaO2, partial pressure of arterial oxygen; FiO2, fractional concentration of inspired oxygen. aComparing ICU admissions with non-ICU admissions; bcomparing ALI with ARDS.

Ferguson et al. Critical Care 2007 11:R96   doi:10.1186/cc6113