TY - BOOK AU - Colice, Gene L TI - Effect of asthma exacerbations on health care costs among asthmatic patients with moderate and severe persistent asthma SN - 0091-6749 PY - 2012/// KW - *Asthma/ec [Economics] KW - *Asthma/pp [Physiopathology] KW - *Disease Progression KW - *Drug Costs KW - Adolescent KW - Adult KW - Asthma/ep [Epidemiology] KW - Child KW - Comorbidity KW - Cost of Illness KW - Female KW - Follow-Up Studies KW - Humans KW - Male KW - Mental Disorders/ep [Epidemiology] KW - Middle Aged KW - Pneumonia/ep [Epidemiology] KW - Sinusitis/ep [Epidemiology] KW - United States KW - Young Adult KW - MedStar Washington Hospital Center KW - Medicine/Pulmonary-Critical Care KW - Journal Article KW - Research Support, Non-U.S. Gov't N1 - Available online from MWHC library: 1994 - present, Available in print through MWHC library: 1999 - 2006 N2 - BACKGROUND: Health care costs increase in patients with more severe asthma, but the effect of asthma exacerbations on costs among patients with more severe asthma has not been quantified; CONCLUSIONS: Patients with moderate/severe persistent asthma who had exacerbations had higher total and asthma-related health care costs than those without exacerbations. Moreover, controller medication use was higher in patients with exacerbations. Copyright 2012 American Academy of Allergy, Asthma & Immunology. Published by Mosby, Inc. All rights reserved; METHODS: Patients who had an asthma diagnosis (International Classification of Diseases-ninth revision-Clinical Modification code 493.x), were 12 to 64 years old, and were receiving controller therapy were identified from a large administrative claims database. Patients were categorized as having moderate/severe persistent asthma and were further evaluated for exacerbations during a 12-month exacerbation identification period. Patients with 1 or more exacerbations (asthma-related inpatient or emergency department visit or corticosteroid prescription) were matched to patients without exacerbations on demographic characteristics and asthma severity. Total and asthma-related health care costs during the 1-year study period after the exacerbation index date were calculated; OBJECTIVE: This study compared direct health care costs between patients with moderate/severe persistent asthma with and without exacerbations; RESULTS: Patients with exacerbations had significantly higher total health care costs ( UR - http://dx.doi.org/10.1016/j.jaci.2012.01.039 ER -