Fig. 1
From: Eliciting patient-important outcomes through group brainstorming: when is saturation reached?
Venn Diagram of PIO Generation from the 3 Brainstorming Sessions. Legend: Bolded numbers in the outer circles indicate total PIOs identified in that session. The intersection of all 3 sessions shows 16 PIOs were common across the sessions. Italicized numbers in the outer circles show unique PIOs identified in that session, and bolded numbers in the inner circles show PIOs present in that 2-session combination