Outcome measurements
coronary artery aneurysm
RECURRENCE, CORONARY ARTERY ANEURYSM, SECONDARY, RECURRENCE
The primary outcome was IVIG resistance, which we defined as the total amount exceeding 26 g in one admission according to a previous study and our own sensitivity analysisThe secondary outcomes were coronary artery involvement and recurrence. Patients required long-term anti-platelet or anti-coagulation therapy if they had coronary artery aneurysm or dilatation after KD. Thus, we defined patients with coronary involvement as receiving prolonged use of aspirin (ATC code, N02BA) or anti-coagulation agents (ATC code, B01A) between 180 and 360 days after the index date. Recurrence was defined as readmission for IVIG therapy occurring more than 30 days after previous KD index day and continuing until the end of the follow-up period.