Fig. 2.
Association between end tidal carbon dioxide concentrations (ETco2) and mean arterial pressure (MAP). The effect of changes in MAP on changes in ETco2 was studied, using a mixed regression model taking clustering into account. The effect estimates found in the linear quantile mixed regression model were plotted per quantile ΔETco2, with their corresponding 95% CI (dotted lines). Within the first quartiles we saw some extreme outliers, explaining the relatively broad CI.