Olfactory dysfunction in Japanese children with moderate-to-severe allergic rhinitis.

Objective: Detailed quantitative studies on olfaction remain inadequate in patients with paediatric allergic rhinitis (AR). This study examined olfactory dysfunction in children with AR.

Methods: From July 2016 to November 2018, children aged 6-9 years were recruited and grouped as AR (n = 30) or without AR (control group, n = 10).