title: Incremental healthcare utilization and expenditures for allergic rhinitis in the United States.
abstract: OBJECTIVE
  Determine incremental increases in healthcare expenditures and utilization associated with allergic rhinitis (AR).
  
  
  METHODS
  Patients reporting a diagnosis of AR were extracted from the 2007 Medical Expenditure Panel Survey medical conditions file and linked to the consolidated expenditures file. AR patients were then compared to non-AR patients determining differences in healthcare utilization: office visits, emergency facility visits, and prescriptions filled, as well as differences in healthcare expenditures: total healthcare costs, office-based costs, prescription medication costs, and self-expenditures using demographically and comorbidity adjusted multivariate models.
  
  
  RESULTS
  An estimated 17.8 ± 0.72 million adult patients reported AR in 2007 (7.9 ± 0.3% of the U.S. population). The additional incremental healthcare utilizations associated with AR relative to non-AR patients for office visits, emergency facility visits, and number of prescriptions filled were 3.25 ± 0.40, 0.01 ± 0.02, and 8.95 ± 0.80, respectively (P < .001, .787, and <.001, respectively). Similarly, additional healthcare expenditures associated with AR for total healthcare expenses, office-based visit expenditures, prescription expenditures, and self-expenditures were $1,492 ± 346, $461 ± 122, $876 ± 126, and $168 ± 25, respectively (all P < 0.001).
  
  
  CONCLUSIONS
  AR is associated with substantial incremental increases in healthcare utilization and expenditures due to increases in office-based visits and prescription expenditures. As a commonly prevalent and costly disease, AR would be a prime target for guideline development and standardization of care.
authors: Division of Otolaryngology, Brigham and Women's Hospital, Boston, Department of Otology & Laryngology, Harvard Medical School, Boston, Massachusetts, USA. neiloy@massmed.org
authors: Neil
authors: N
authors: Bhattacharyya
mesh_terms: D015897:Comorbidity; D003710:Demography; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D005260:Female; D005102:Health Expenditures; D006801:Humans; D008297:Male; D008875:Middle Aged; D009819:Office Visits / Q000706:statistics & numerical data; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data; D012221:Rhinitis, Allergic, Perennial / Q000191:economics* / Q000453:epidemiology; D006255:Rhinitis, Allergic, Seasonal / Q000191:economics* / Q000453:epidemiology; D014481:United States / Q000453:epidemiology; D014600:Utilization Review