title: Sensitization to common allergens in adults with asthma.
abstract: OBJECTIVE
  To estimate the prevalence of atopy (ie, allergen sensitization) in a sample of adult asthma outpatients.
  
  
  METHODS
  Population consisted of a total of 218 patients, 18 to 55 years of age, who were currently receiving care for asthma; and 13 physicians, whose specialties were Family Practice, Allergy, or Pulmonology and who were providing care to at least 10 to 15 asthma patients weekly. Patients provided a blood sample for quantification of total and allergen-specific IgE. Outcomes were the proportion of patients with atopy and the proportions of patients with elevated serum IgE specific to each of 8 specific common allergens.
  
  
  RESULTS
  The patients' mean age was 42 years, and 74% were women; 68% of patients met the study definition of atopy. Total serum IgE > or = 114 kU/L was observed in 48% of patients, and 59% had elevated levels of IgE specific to one or more of 8 common allergens.
  
  
  CONCLUSIONS
  The majority of adult asthma outpatients had evidence of atopy and most were sensitive to a specific identifiable allergen. Awareness of the high prevalence of atopy among asthma patients might improve patient management.
authors.affiliation: Outcomes Research and Management, Merck & Co., Inc., West Point, PA 19486, USA.
authors.forename: Felicia
authors.initials: F
authors.lastname: Allen-Ramey
authors.forename: William F
authors.initials: WF
authors.lastname: Schoenwetter
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Weiss
authors.forename: David
authors.initials: D
authors.lastname: Westerman
authors.forename: Nasira
authors.initials: N
authors.lastname: Majid
authors.forename: Leona E
authors.initials: LE
authors.lastname: Markson
mesh_terms: D000328:Adult; D000485:Allergens; D001249:Asthma / Q000453:epidemiology* / Q000208:ethnology; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology* / Q000208:ethnology; D007073:Immunoglobulin E / Q000097:blood; D008297:Male; D015995:Prevalence
chemical_list: D000485:Allergens; D007073:Immunoglobulin E