(A) Flowchart illustrating the exclusion criteria of the study. (B and C) Age and sex distribution in the studied cohort and their corresponding controls (ANA, acute anaphylaxis; HC, healthy control; 2-tailed Student’s t test, n = 71). (D) Distribution of elicitors and severity of anaphylaxis according to Ring and Messmer (13) (FIA, food-induced anaphylaxis; VIA, venom-induced anaphylaxis). VIA did not show significantly more severe reactions, classified as Ring and Messmer (13) grade III, than FIA (P = 0.089). (E) Frequency of symptoms in FIA and VIA.