Comparison of ΔFVC between patients with allergic rhinitis with airway hypersensitivity and patients with mild asthma

Patients with allergic rhinitis and airway hypersensitivity had a significantly lower ΔFVC than methacholine PC20-matched mild asthmatic patients, suggesting that the level of maximal airway response in patients with allergic rhinitis is lower than that in mild asthmatic patients with a similar degree of airway hypersensitivity.