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Updated: Jun 21, 2026

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
Published on: March 3, 2023
Objective assessments of allergic and nonallergic rhinitis in young children
B L K Chawes1, E Kreiner-Møller1, H Bisgaard1
1Danish Pediatric Asthma Center, Copenhagen University Hospital, Gentofte Copenhagen, Denmark.
Insights
Allergic rhinitis in children is linked to irreversible nasal obstruction and eosinophilia, indicating different pathologies than nonallergic rhinitis. This study highlights distinct nasal inflammation and airway changes in childhood rhinitis.
Area of Science:
- Pediatric Allergy and Immunology
- Otorhinolaryngology
- Respiratory Medicine
Background:
- Allergic and nonallergic rhinitis are prevalent childhood conditions.
- Understanding their distinct pathologies is crucial for effective management.
- Early childhood assessment is vital for long-term respiratory health.
Purpose of the Study:
- To investigate nasal eosinophilia and airway patency in young children with allergic and nonallergic rhinitis.
- To differentiate the underlying pathologies of these common childhood rhinitis types.
- To assess the association between rhinitis diagnosis and nasal inflammation/obstruction.
Main Methods:
- A cohort of 255 six-year-old children was studied.
- Nasal eosinophilia and airway patency (acoustic rhinometry) were assessed.
- Data were analyzed using a multivariate model, accounting for relevant covariates.
Main Results:
- Allergic rhinitis correlated significantly with irreversible nasal airway obstruction.
- Both allergic and nonallergic rhinitis showed significant nasal eosinophilia, more pronounced in allergic rhinitis.
- Nonallergic rhinitis did not show changes in nasal airway patency.
Conclusions:
- Allergic and nonallergic rhinitis exhibit distinct pathologies.
- Allergic rhinitis is associated with eosinophilic inflammation and irreversible nasal obstruction, suggesting structural changes.
- Nonallergic rhinitis involves eosinophilic inflammation but not significant airway obstruction in young children.
Background:
Allergic and nonallergic rhinitis are common childhood disorders.
Objective:
To study nasal eosinophilia and nasal airway patency in young children with allergic and nonallergic rhinitis to assess the pathology behind such diagnoses.
Methods:
We investigated 255 children at six years of age from the Copenhagen Prospective Study on Asthma in Childhood birth cohort assessing rhinitis history, specific immunoglobulin E relevant to rhinitis symptoms, nasal eosinophilia and nasal airway patency by acoustic rhinometry before and after decongestion. Associations were studied in a multivariate graphical model corrected for gender, height and nasal steroid usage.
Results:
Allergic rhinitis was significantly and directly associated with irreversible nasal airway obstruction (reduced decongested nasal airway patency) (P = 0.004), whereas nonallergic rhinitis was not. Both allergic rhinitis (P = 0.000) and nonallergic rhinitis (P = 0.014) were directly and significantly associated with nasal eosinophilia, but this association was stronger for allergic rhinitis.
Conclusion:
Allergic rhinitis and nonallergic rhinitis are of different pathologies as suggested from their different associations not only to allergy but importantly also to irreversible nasal airway obstruction and eosinophilic inflammation. Allergic rhinitis was significantly associated with nasal eosinophilia and irreversible nasal airway obstruction suggesting chronic inflammation and structural remodeling of the nasal mucosa in children at the age of 6 years. Nonallergic rhinitis exhibited no change in the nasal airway patency, but some nasal mucosal eosinophilia albeit less than children with allergic rhinitis.
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