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Published on: June 4, 2017
Allergen sensitization patterns in children with allergic rhinitis: insights from a four-year retrospective study in
Zhimin Zhao1, Liwen Chen2, Congfu Huang3
1Department of Laboratory Medicine, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), No.6, Ailong Road, Longgang District, Shenzhen, Guangdong, 518172, China.
Insights
In Shenzhen, China, children with allergic rhinitis (AR) show distinct allergen sensitization patterns. Dust mites are most common, with age and comorbidities influencing profiles, necessitating tailored diagnostics.
Area of Science:
- Allergy and Immunology
- Pediatrics
- Environmental Health
Background:
- Allergic rhinitis (AR) is a prevalent condition in children.
- Understanding allergen sensitization is crucial for effective AR management.
- Regional variations in allergen prevalence necessitate localized research.
Purpose of the Study:
- To characterize allergen sensitization profiles in children with AR in Shenzhen, China.
- To assess the influence of demographic, seasonal, and comorbidity factors on sensitization.
- To inform region-specific diagnostic and management strategies for pediatric AR.
Main Methods:
- Retrospective cross-sectional study of 4,279 children with AR (April 2020-March 2024).
- Serum-specific IgE levels against 28 allergens measured by immunoblotting.
- Statistical analysis of age, sex, season, and comorbidity influences on sensitization.
Main Results:
- Inhaled allergen sensitization (78.3%) was more common than food allergen sensitization (65.4%).
- Dust mites (61.6%), dog dander (21.8%), and cat dander (11.4%) were primary inhaled allergens; milk (46.9%) and egg white (27.4%) were leading food allergens.
- Inhaled allergen sensitization increased with age, while food allergen sensitization decreased; digestive comorbidities correlated with broader sensitization.
Conclusions:
- Distinct allergen sensitization patterns were identified in Shenzhen children with AR.
- Findings underscore the need for region-specific diagnostic panels.
- Integrated care approaches and personalized management are recommended for pediatric AR.
Objective:
To characterize allergen sensitization profiles in children with allergic rhinitis (AR) in Shenzhen, China, and assess the influence of demographic, seasonality, and comorbidities factors.
Methods:
This retrospective cross-sectional study included 4,279 children diagnosed with AR between April 2020 and March 2024. Serum-specific IgE against 28 common allergens was measured by immunoblotting. Sensitization was defined as sIgE ≥ 0.35 IU/mL. Data were analyzed by age, sex, season, and comorbidities using chi-square tests (P < 0.05).
Results:
Sensitization to inhaled allergens (78.3%) was more prevalent than to food allergens (65.4%, P < 0.05). Dust mites (61.6%), dog dander (21.8%), and cat dander (11.4%) were the most common inhaled allergens, while milk (46.9%) and egg white (27.4%) were the leading food allergens. Sensitization to inhaled allergens increased with age, while food allergen sensitization decreased (P < 0.05). Boys exhibited higher rates of sensitization to certain allergens, and pronounced seasonal trends were observed, particularly for pollen and shellfish in summer. Children with digestive comorbidities showed broader sensitization across multiple allergens.
Conclusion:
Distinct allergen sensitization patterns in Shenzhen children with AR highlight the need for region-specific diagnostic panels and integrated care, supporting more personalized management and future research directions.
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