Correlates of potentially inappropriate prescriptions of benzodiazepines among older adults: results from the ESA study

Can J Aging. 2012 Sep;31(3):313-22. doi: 10.1017/S0714980812000232. Epub 2012 Jul 17.

Abstract

ESA study data were paired with Quebec medical and pharmaceutical services records to document potentially inappropriate benzodiazepines (Bzs) prescriptions among community-dwelling adults aged 65 and older. Results indicate that 32 per cent of respondents took a mean daily dose of 6.1 mg of equivalent diazepam for, on average, 205 days per year. Almost half (48%) of Bzs users received a potentially inappropriate benzodiazepine prescription at least once during the year preceding the survey. About 23 per cent received at least one concomitant prescription of a Bz and another drug that could result in serious interaction. In addition, individuals aged 75 and older were more likely to receive Bzs for a longer period of time than those aged 65-74. Number of pharmacies used was associated with inappropriate Bzs prescriptions. Our results argue in favour of a more integrated health services system, including a regular review of older adults' drug regimens.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Benzodiazepines / therapeutic use*
  • Data Collection
  • Drug Prescriptions / statistics & numerical data*
  • Drug Utilization / statistics & numerical data
  • Female
  • Humans
  • Inappropriate Prescribing / statistics & numerical data*
  • Insurance Claim Review
  • Logistic Models
  • Male
  • Prevalence
  • Quebec

Substances

  • Benzodiazepines