Aeroallergen Sensitization and Clinical Characteristics of Subjects with Chronic Rhinitis in Chiang Mai, Thailand: A Twenty-Year Retrospective Study.

The most common aeroallergen for AR (with and without asthma) was mite mixed followed by cockroach mixed and grass pollen. Polysensitization was significant higher in younger adult than middle aged and older adult. AR was significantly associated with asthma, conjunctivitis and family history of chronic rhinitis compared to NAR.