Figure 4
From: Optimizing the diagnostic power with gastric emptying scintigraphy at multiple time points
The hierarchy of the Classification and Regression Tree (CART) model starts from the top with terminal nodes at the bottom. Within each intermediate node are criteria for splitting, numbers of subjects, and percent of cases (diagnosed with gastroparesis) of all subjects within the node. Integers in the terminal nodes represent total number of subjects and decimal number at the bottom is the probability of a subject being diagnosed with gastroparesis.