title: The association between asthma control and health care utilization, work productivity loss and health-related quality of life.
abstract: OBJECTIVE
  To determine the association between asthma control and health outcomes.
  
  
  METHODS
  Cross-sectional data on asthmatic patients were from the 2006 U.S. National Health and Wellness Survey. Asthma control was determined by the Asthma Control Test. Outcomes assessed included work productivity loss/activity impairment, health-related quality of life, and resource utilization. Effects of asthma control on outcomes were determined with linear and Poisson regression models.
  
  
  RESULTS
  There were 2767 uncontrolled asthmatics and 2912 controlled asthmatics. Adjusting for confounders, controlled asthmatics reported (P < 0.001) higher physical and mental health-related quality of life scores (SF-8); fewer emergency room visits, hospitalization days, and medical provider visits; lower levels of overall work productivity loss and activity impairment.
  
  
  CONCLUSIONS
  Results indicate that asthma control is associated with better health outcomes. Management with therapies optimizing asthma control may reduce direct and indirect costs of treatment.
authors.affiliation: Health Economics and Outcomes Research, AstraZeneca LP, Wilmington, DE, USA.
authors.forename: Setareh A
authors.initials: SA
authors.lastname: Williams
authors.forename: Samuel
authors.initials: S
authors.lastname: Wagner
authors.forename: Hema
authors.initials: H
authors.lastname: Kannan
authors.forename: Susan C
authors.initials: SC
authors.lastname: Bolge
mesh_terms: D000328:Adult; D001249:Asthma / Q000188:drug therapy*; D003430:Cross-Sectional Studies; D004526:Efficiency; D005260:Female; D006296:Health Services / Q000706:statistics & numerical data*; D006304:Health Status; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011788:Quality of Life