This study was a target trial emulation using the National Health Claims database established by the Korean National Health Insurance Service (K-NHIS). 8,325 patients were included.

Among these patients, any patients who were prescribed SAPT or DAPT at the date of discharge from the index hospitalization for standard EVAR were defined as being in the SAPT group (N=4,162) and the DAPT group (N=4,163), respectively.

Inclusion Criteria:

• All patients who underwent EVAR for AAA and were successfully discharged

Exclusion Criteria:

• Patients who had experienced a myocardial infarction
• Patients who had experienced a stroke
• Patients who had experienced percutaneous coronary intervention
• Patients who had history of peripheral disease
• Patients who had major bleeding event within 1 year of admission
• Those prescribed non-vitamin K antagonist oral anticoagulant or warfarin
• Patients who did not prescribe any antiplatelet therapy

All patients who underwent EVAR for AAA and were successfully discharged and prescribe any antiplatelet therapy.