| |
Hyperoxemia
|
Non-hyperoxemia
|
Difference
|
95% CI
|
P value
|
|---|
|
Unadjusted analyses
|
|
ICU-free days until day 28, median (IQR)
|
17 (10–21)
|
23 (16–26)
|
− 4
|
− 2 to − 7
|
< 0.001
|
|
- Intubated at ED
|
17 (11–20)
|
15 (8–23)
|
0
|
− 3 to 4
|
0.832
|
|
- Not intubated at ED
|
22 (10–28)
|
24 (21–27)
|
− 2
|
− 9 to 2
|
0.356
|
|
IPWa
|
|
ICU-free days until day 28, median (IQR)
|
16 (10–22)
|
19 (12–24)
|
− 2
|
− 4 to 0
|
0.123
|
|
- Intubated at ED
|
18 (9–20)
|
15 (8–23)
|
0
|
− 3 to 3
|
0.777
|
|
- Not intubated at ED
|
16 (12–22)
|
23 (19–26)
|
− 5
|
−3 to − 10
|
0.004
|
|
Ventilator-free days until day 28, median (IQR)
|
19 (10–26)
|
22 (7–27)
|
− 1
|
− 3 to 0
|
0.123
|
|
- Intubated at ED
|
18 (0–20)
|
18 (4–25)
|
0
|
− 4 to 0
|
0.265
|
|
- Not intubated at ED
|
25 (15–26)
|
28 (23–28)
|
− 2
|
− 3 to 0
|
0.014
|
|
Survival rate
|
85.2%
|
82.7%
|
OR = 1.21
|
0.62 to 2.35
|
0.590
|
- CI confidence interval, IQR interquartile range, ED emergency department, IPW inverse probability weighting
- aIPW was performed using propensity scores, and data were presented after excluding patients with propensity score of < 0.1 or > 0.9
