title: Potentially inappropriate prescribing of benzodiazepines for older adults and risk of falls during a hospital stay: a descriptive study.
abstract: BACKGROUND
  Falls have been identified as a potential adverse event associated with the administration of psychotropic medications to older patients.
  
  
  OBJECTIVE
  The objective of this exploratory study was to examine the association between potentially inappropriate prescribing of benzodiazepines, as defined by the Beers criteria, by older adults (at least 65 years of age) and the risk of having a fall during acute inpatient care.
  
  
  METHODS
  This 1-year retrospective cross-sectional study of discharges from a tertiary care hospital in Halifax, Nova Scotia, used pharmacy data to identify the prescription of benzodiazepines listed in the updated Beers criteria as being associated with an increased risk of falls. These data were linked with information on in-hospital falls from occurrence report forms.
  
  
  RESULTS
  For 5831 (58.1%) of the 10 044 discharges, the patient had received a prescription for at least one benzodiazepine during the hospital stay. A total of 574 falls were reported (for 374 patients), and 226 (39.4%) of the falls resulted in an injury. According to the Beers criteria, for 936 (9.3%) of the discharges, the patient had received a prescription for at least one potentially inappropriate benzodiazepine. However, there was no statistically significant difference between patients with a prescription for a potentially inappropriate benzodiazepine and those receiving an appropriate or no benzodiazepine in terms of occurrence of falls (4.5% versus 3.8%, p = 0.30) or fall-related injuries (2.6% versus 1.8%, p = 0.08). The median length of stay was about 3 days longer for the former group (9 versus 6 days, p < 0.001).
  
  
  CONCLUSIONS
  The findings from the current study do not support use of the Beers criteria related to benzodiazepines alone for identifying patients at risk of falls or injuries.
authors.affiliation: , BSc(OT), PhD, is with the Department of Emergency Medicine, Dalhousie University, Halifax, Nova Scotia. She is a Postdoctoral Fellow with the College of Pharmacy at Dalhousie University and is the recipient of the Dr David Rippey Patient Safety Fellowship (Canadian Patient Safety Institute and Canadian Institutes of Health Research).
authors.forename: Stacy
authors.initials: S
authors.lastname: Ackroyd-Stolarz
authors.forename: Neil J
authors.initials: NJ
authors.lastname: Mackinnon
authors.forename: Ingrid
authors.initials: I
authors.lastname: Sketris
authors.forename: Brenda
authors.initials: B
authors.lastname: Sabo