Figure 5

Scatterplots of electrophysiologic parameters and cross-sectional areas in Charcot-Marie-Tooth disease type IA patients. Tibial CMAP ((A,B); levels 2 and 3) and peroneal CMAP ((C,D); levels 2 and 3) correlated negatively with CSA as measured by both reviewers at levels 2 and 3. Blue circles and red triangles represent data analyzed by reviewers 1 and 2, respectively. CMAP compound muscle action potential, CSA cross-sectional area of the sciatic nerve.