Related Experiment Video
Updated: Sep 15, 2025

Basophil Activation Test for Allergy Diagnosis
Published on: May 31, 2021
Differences between multi-triggered and single-triggered food anaphylaxis in children: a real life study
Şule Büyük Yaytokgil1,2, İlknur Külhaş Çelik1,3, Zeynep Şengül Emeksiz1
1Department of Pediatric Allergy/Immunology, Ankara Bilkent City Hospital, University of Health Sciences, Ankara, Türkiye.
Insights
Multi-triggered food-induced anaphylaxis (FIA) affects a quarter of children with FIA and is linked to atopy and higher IgE levels. Elevated IgE over 100 IU/mL predicts multiple food triggers in pediatric FIA.
Area of Science:
- Pediatric Allergy and Immunology
- Clinical Immunology
- Food Allergy Research
Background:
- Food-induced anaphylaxis (FIA) is a severe allergic reaction.
- Limited data exists on multi-triggered FIA in children.
- This study investigates differences between single and multi-triggered FIA.
Purpose of the Study:
- To compare multi-triggered and single-triggered food anaphylaxis in pediatric patients.
- To identify risk factors associated with multi-triggered FIA.
Main Methods:
- Retrospective analysis of pediatric patients diagnosed with FIA.
- Comparison of clinical characteristics between single-triggered and multi-triggered FIA groups.
- Statistical analysis to identify predictive factors for multi-triggered FIA.
Main Results:
- Approximately 25% of pediatric FIA cases were multi-triggered.
- Multi-triggered FIA was associated with higher rates of atopic disease, asthma, and eosinophilia.
- Elevated total IgE levels (>100 IU/mL) were a significant predictor of multi-triggered FIA (OR 2.46).
Conclusions:
- Multi-triggered FIA is common in children and linked to allergic comorbidities.
- Total IgE levels exceeding 100 IU/mL serve as a warning sign for multiple food triggers.
- Clinicians should consider high IgE levels when screening and managing pediatric FIA patients.
Background:
Food-induced anaphylaxis (FIA) is a severe form of food allergy, and literature data about multi-triggered FIA is scarce. This study aimed to evaluate the differences between multi-triggered and single-triggered food anaphylaxis in children.
Methods:
The study included pediatric patients (age 100 IU/mL was identified as a predictive factor for multi-triggered FIA (Odds ratio (95% CI): 2.46 (1.40-4.30), p=0.001).
Conclusions:
FIA with multiple trigger foods was detected in approximately a quarter of the children with FIA. Multi-triggered FIA was associated with higher rates of atopic disease, asthma, eosinophilia, and increased total IgE levels. A total IgE level higher than 100 IU/mL was a risk factor for multi-triggered FIA. This suggests that high IgE levels may be a warning sign for clinicians to be vigilant for multiple food triggers in the screening and follow-up of FIA patients.
Related Concept Videos
Allergic Reactions
Cross-reactivity
Hypersensitivities
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...
Allergic Drug Reactions
Desensitization and Tachyphylaxis
Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.

