From: Replacement of anesthesia machines improves intraoperative ventilation parameters associated with the development of acute respiratory distress syndrome
Variable
Before vent exchange (n = 13,250)
After vent exchange (n = 13,250)
p
28 day Mortality
83 (0.6%)
74 (0.6%)
0.522
90 day Mortality
190 (1.4%)
188 (1.4%)
0.959
Acute Lung Injury within 7 days
20 (0.2%)
12 (0.1%)
0.216