title: Evaluation of allergic etiology in perennial rhinitis.
abstract: In 197 patients with perennial rhinitis, 49 patients (24.9%) were found to be allergic to perennial inhalant allergens, 37 patients (18.8%) allergic to seasonal allergens, 52 patients (26.4%) had food intolerance, 12 patients (6.6%) showed evidence of nasal infection, and in 46 patients (23.3%) etiology was undetermined.
mesh_terms: D000328:Adult; D003611:Dairy Products; D004391:Dust; D002523:Edible Grain; D004531:Eggs; D005260:Female; D005503:Food Additives; D005512:Food Hypersensitivity / Q000150:complications*; D006197:Hair; D006801:Humans; D007073:Immunoglobulin E / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009754:Nuts; D012141:Respiratory Tract Infections / Q000150:complications; D012221:Rhinitis, Allergic, Perennial / Q000209:etiology*; D015003:Yeasts
chemical_list: D004391:Dust; D005503:Food Additives; D007073:Immunoglobulin E