Table 2: Outcome variables. Data are expressed as mean SD, median (interquartile range), or number and percentage (%).

 

HFO Group

N = 111

Control Group

N = 111

P

FiO2 at 12-h after extubation

34.6 7.4

35.2 7.6

0.50

Hypercapnia after extubation

8 (7.2%)

7 (6.3%)

0.80

Gas-flow (HFO) at 12-h after extubation, L/min

34.2 4.2

NA

 

All-cause reintubation

9 (8.1%)

17 (15.3%)

0.09

Low risk group

2/45 (4.4%)

6/45 (13.3%)

0.26

Non-respiratory related causes

1/2 (50%)

1/6 (16.5%)

0.46

High risk group

7/66 (10.6%)

11/66 (16.6%)

0.31

Non-respiratory related causes

2/7 (28.5%)

3/11 (27.3%)

0.99

Time to reintubation requirement, median hours

35 (24-60)

12 (4-19)

< 0.01

ICU length of stay, days

11 (6-14)

14 (7-19)

0.05

Hospital length of stay, days

17 (10-22)

18 (12-25)

0.09

ICU mortality

4 (3.6%)

7 (6.3%)

0.35

ICU mortality in reintubated patients

4 (44%)

7 (41%)

0.99

Hospital mortality

7 (6.3%)

9 (8.1%)

0.60

 

ICU = intensive care unit; HFO = high flow oxygen therapy.