From: Preoxygenation before intubation in adult patients with acute hypoxemic respiratory failure: a network meta-analysis of randomized trials
HFNC and NIV
NIV
HFNC
COT
Lowest SpO2 during intubation
0.895
0.739
0.336
0.030
SpO2 < 80% during intubation
0.957
0.634
0.344
0.066
Intubation-related complications
0.560
0.774
0.595
0.071
Mortality
0.689
0.556
0.598
0.157