Optimal strategies for mitigating gastrointestinal bleeding in patients receiving antiplatelet therapy: Real-world study

Figure 4 Conceptual diagram of antiplatelet user subgroups. Subgroups of antiplatelet users based on aspirin and clopidogrel use are illustrated. Aspirin-alone users (A) and clopidogrel-alone users (B) are defined as patients receiving either agent without exposure to the other. Concomitant users are defined as patients exposed to both agents, regardless of taking two agents at the same time (overlapping). Concomitant users include sequential users (C) of two agents without overlapping, partially concurrent users (D) of two agents with partial overlap, and concurrent users (E), taking two agents at the same time without using single agent alone.