Known-groups analysis of the domain scores.
COMPLICATIONS
Known-groups analysis was investigated for the PIB score (weekly mean) and for the Decision Tree score. Subjects were divided into three groups depending on presence and severity of peristomal skin complications. Using the PGIS anchor, the between group effect sizes (ES) were estimated using the pooled standard deviation (SD) based on the reference group (Group 1). The following cut-offs were applied: small change (ES = 0.20), moderate change (ES = 0.50), and large change (ES = 0.80). The 