Statistical analysis
Differences in MRGPRX2 levels in healthy controls and patients with DIA were calculated using Student’s t tests. Differences in clinical variables between groups were evaluated using chi-square tests. One-way analysis of variance (ANOVA) was applied to analyze the difference in MRGPRX2 levels according to causal drugs and time interval. Data were analyzed using MedCalc (version 15.5) statistical software. Two-sidedp value of <0.05 was considered significant.
Supplementary Table 1 . Frequency of causal drugs in each time interval from anaphylaxis.