IGHE and food allergy: ,19,20,22,24,26,27,29, 30, 31, 32 The remaining 20 studies provided new symptom-severity scores but not eligible primary data for our SR since they: a) included allergic reactions triggered by a different58 or any allergenic source (ie, not only food);46, 47, 48,50 b) or were based on self-reported diagnosis of food allergy;1,42,45,49 c) or included food allergy diagnosis only based on IgE-sensitization without history of ingestion of the suspected culprit food;44 d) or referred to oral immunotherapy trials.43