From: Predictors of mortality and prolonged mechanical ventilation in patients admitted to a medical-surgical intensive care unit
Variable
Odds ratio
95% CI
P
APACHE II >20
4.2
1.4-13
0.003
Heart rate >100 bpm
2.6
1.2-5.8
0.01
Age >65 years
2.3
1.0-5.8
0.04
FiO2 >0.50
2.2
1.0-4.5
Primary respiratory disorder
2.1
1.0-4.7
0.05
Inotropic use
2.0
0.9-4.4
0.08