title: Individual utilization of anti-asthma medication by young adults: a prescription database analysis.
abstract: OBJECTIVE
  To analyse and evaluate current practice of asthma therapy by use of computerized prescription data.
  
  
  METHODS
  Descriptive, non-interventive.
  
  
  METHODS
  A pharmacoepidemiological database on computerized refund claims from pharmacies in the Odense region in Denmark.
  
  
  METHODS
  Persons aged 20-44, presenting prescriptions for asthma drugs during the period 1 October 1990 to 30 September 1991.
  
  
  METHODS
  Prevalence of asthma drug use, the regimes chosen, relationship between beta-agonist and steroid use by the individual patient.
  
  
  RESULTS
  In all, 3020 persons used anti-asthma drugs, corresponding to a crude 1-year prevalence of 3.6%. Sixty per cent were women. The subjects had an average anti-asthma drug consumption corresponding to 86% of the population's average. The four most common regimes were inhaled beta-agonist monotherapy, inhaled beta-agonist and corticosteroid, oral beta-agonist monotherapy and inhaled corticosteroid monotherapy, altogether accounting for 79% of users. The proportion of corticosteroid users increased with increasing individual use of beta-agonists. With an annual beta-agonist purchase of 100-200 defined daily doses, still less than half also used steroids.
  
  
  CONCLUSIONS
  The majority of patients use a regime agreeing with current guidelines, except that more patients should be prescribed corticosteroids. The observed large increase in asthma drug use is likely to be explained by an intensified treatment of individual patients, rather than an increased prevalence.
authors.affiliation: Department of Clinical Pharmacology, Odense University, Denmark.
authors.forename: J
authors.initials: J
authors.lastname: Hallas
authors.forename: N C
authors.initials: NC
authors.lastname: Hansen
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D000328:Adult; D001249:Asthma / Q000188:drug therapy*; D016208:Databases, Factual; D003718:Denmark; D004363:Drug Utilization / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male
chemical_list: D000305:Adrenal Cortex Hormones; D000318:Adrenergic beta-Agonists