Fig. 1From: Noninvasive ventilation vs. high-flow nasal cannula oxygen for preoxygenation before intubation in patients with obesity: a post hoc analysis of a randomized controlled trialA Rates of severe hypoxemia during intubation procedure after preoxygenation using noninvasive ventilation or high-flow nasal cannula oxygen therapy in patients with obesity (grey bar) and without obesity (dark bar). B Lowest individual pulse oximetry values during intubation procedure after preoxygenation using noninvasive ventilation or high-flow nasal cannula oxygen therapy in patients with obesity (grey points) and without obesity (dark points)Back to article page