Diagnostic value of digital continuous bowel sounds in critically ill patients with acute gastrointestinal injury: A prospective observational study

Figure 4 Canonical discriminant function. Various observation indicators of acute gastrointestinal injury (AGI) to be evaluated are substituted into the following two discriminant functions; the AGI class to which the AGI being assessed belongs can be determined by identifying the group centroid closest to the obtained (Y₁, Y₂). I, II, III, and non-AGI are the AGI I group, AGI II group, AGI III group, and non-AGI group, respectively. AGI: Acute gastrointestinal injury.