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Related Experiment Videos

Polypharmacy in general practice: differences between practitioners.

L Bjerrum1, J Søgaard, J Hallas

  • 1Department of Clinical Pharmacology, Odense University, Denmark. l-bjerrum@winchs.ou.dk

The British Journal of General Practice : the Journal of the Royal College of General Practitioners
|May 27, 1999
PubMed
Summary
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Major polypharmacy, using five or more medications, varies six-fold between general practices. Practice characteristics significantly predict this variation, aiding in targeted interventions to reduce risks associated with multiple drug use.

Area of Science:

  • Pharmacoepidemiology
  • Health Services Research

Background:

  • Polypharmacy, defined as using multiple medications, increases risks of adverse drug reactions, errors, and hospitalizations.
  • Major polypharmacy (five or more concurrent drugs) presents significant patient risk.

Purpose of the Study:

  • To analyze interpractice variation in major polypharmacy prevalence.
  • To identify practice-related predictors of major polypharmacy.

Main Methods:

  • Utilized prescription data from the Odense Pharmacoepidemiological Database.
  • Calculated age- and sex-standardized prevalence rates for 173 general practices in Denmark.
  • Employed backward stepwise linear multiple regression to analyze practice characteristics as predictors.

Main Results:

Related Experiment Videos

  • A six-fold variation in major polypharmacy prevalence was observed across practices (16-96 per 1000 patients).
  • Practice structure, workload, clinical profile, and prescribing patterns explained 56% of the observed variation.

Conclusions:

  • Practice-related factors substantially contribute to the variation in major polypharmacy.
  • Understanding these predictors can inform strategies to manage polypharmacy effectively.