MRGPRX2 level (ng/mL) P value
Age 0.711
< 40 years (n=22) 54.6±43.2
≥40 years (n=46) 58.7±43.1
Sex 0.540
Male (n=27) 61.3±49.9
Female (n=41) 54.8±37.9
Causal drugs 0.918
Antibiotics (n=33) 61.4±43.7
NSAIDs (n=13) 48.3±38.5
H2-blockers (n=7) 54.0±33.8
RCM (n=5) 54.1±75.6
Others (n=10) 59.9±37.3
Time interval from anaphylaxis event 0.153
0–1 week (n=31) 51.9±45.2
1–2 weeks (n=16) 54.0±42.1
2–3 weeks (n=7) 66.9±39.7
3–4 weeks (n=8) 47.2±27.6
4–5 weeks (n=6) 97.4±39.7