Fig. 3
Change of heart rate (a), respiratory rate (b), and SpO2/FiO2 ratio (c) during the first 24 h in 38 children with status asthmaticus treated by nasal high flow. Heart rate, respiratory rate, and SpO2/FiO2 ratio significantly change over time according to the repeated-measures analysis of variance (ANOVA). *Significant difference with pairwise post hoc analysis (p < 0.01). Bars indicate 95% confidence intervals. H hours