Fig. 2 | Scientific Reports

Fig. 2

From: Randomized crossover trial of a demand oxygen delivery system in nocturnal hypoxemia

Fig. 2

Twenty participants were assessed for eligibility. None of them met the exclusion criteria, and all of them were randomly assigned to either the auto-DODS followed by continuous flow group or the continuous flow followed by auto-DODS group (allocation ratio 1:1). One patient in the auto-DODS followed by continuous flow group was excluded from the largest analysis population because baseline data for VISIT1 were not available.

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