3176 Transition of Allergic and Nonallergic Rhinitis after 2 Years in Korean Children: Preliminary Study

Friday, 16 October 2015
Hall D1 Foyer (Floor 3) (Coex Convention Center)

Jae Hoon Cho, MD, PhD , Department of Otorhinolaryngology-Head & Neck Surgery, Konkuk University Hospital, Seoul, South Korea

Ji Ho Choi, MD, PhD , Department of Otorhinolaryngology-Head and Neck Surgery,, Korea University Hospital, Ansan, South Korea

Objectives: Allergic and nonallergic rhinitis are very common disease for children, however, little is known about their natural courses. The purpose is to evaluate the natural course of allergic and nonallergic rhinitis in children.  

Study Design: Individual cohort study

Methods: We analyzed data from Snoring Child Cohort of 208 children. The data encompassed questionnaire about chronic rhinitis, and the result of skin prick test (SPT) for 5 inhalent and specific IgE for 2 allergens. Children were classified into four groups, namely allergic rhinitis (rhinitis plus positive SPT), nonallergic rhinitis (rhinitis plus negative SPT), sensitization only (no rhinitis plus positive SPT), and control (no rhinitis plus negative SPT).   

Results: Finally, the data of 124 children were analyzed. Among 18 children with allergic rhinitis at 7 year, 13 (72.2%) became sensitization only after 2 years and only 5 (27.8%) were remained as allergic rhinitis. Five (26.3%) out of 19 with children nonallergic rhinitis at 7 year turned into allergic rhinitis at 9 year and 7 (36.8%) into control. Twenty six (86.7%) out of 30 children with sensitization only at 7 year were remained as same at 9 year. Among 59 control children at 7 year, 2 (3.3%) became those with allergic rhinitis, 7 (11.9%) with nonallergic rhinitis, and 16 (27.1%) with sensitization only at 9 year.

Conclusion: The status of chronic rhinitis and allergen sensitization is very changeable in children.