Mathematical Behavior of MEFV Curves in Childhood Asthma and the Role of Curvature in Quantifying Flow Obstruction
Figure 3
Plots of patient MEFV curves of Figure 1 with corresponding quadratic fit over the convex region of the descending limb ((o) inflection point (IP); (--) quadratic fit). Coordinates are shown in the top left corner subplot. Note that all fits yield and are robust against possible outlier points (see fourth row, first column). For each subplot, values of ACI are correspondingly given.
