Comparative Evaluation of an Allergen Exposure Chamber and Nasal Allergen Challenge Versus In-Field Symptom Assessment in Patients With Allergic Rhinitis Triggered by Timothy Grass Pollen.

However, the time effect was highly significant ( F = 123.63, p < 0.001), showing a marked reduction in airflow over time.

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The group effect, while present, was weaker and statistically insignificant ( F = 1.95, p = 0.1630); this suggests that, while there was a clear trend of reduced airflow in allergic patients, the difference between the AR and HC groups was not large enough to be considered statistically significant.

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