Figure 3.

Effects of the semirecumbent position (SRP) and prone position (PP) on the respiratory rate (RR). A, Dot plots and lines of the RR at the baseline and the end (120 min) of each period during the SRP and PP. The horizontal line indicates the median value. B, Dot plots and lines of the relative variation in the RR during the SRP and PP, which was computed as 100 × (end value–baseline value)/baseline value. The baseline of each period was normalized to the reference level (zero). The horizontal line indicates the median value. C, Scatter plot and regression analysis of the relative variation in the RR and the relative variation in Pao₂/Fio₂. The dashed lines indicate the 95% CI of the regression line.