Barriers to Effective Prescribing in the Elderly: Applying the Theoretical Domains Framework in the Ambulatory Setting
Abstract Aims: As the population ages, potentially inappropriate prescribing (PIP) in the elderly may become increasingly prevalent. This undermines patient safety and creates a potential source of major morbidity and mortality. Understanding the factors that influence prescribing behaviour may allow development of interventions to reduce PIP. The aim of this study is to apply the Theoretical Domains Framework (TDF) to explore barriers to effective prescribing in the elderly in the ambulatory setting.Methods: A scoping review was performed based on the five-stage methodological framework developed by Arksey and O’Malley. Our search strategy included PubMed, CINAHL, EMBASE, the Cochrane Database of Systematic Reviews, and Web of Science. We also searched five electronic journals, Google and Google Scholar to identify additional sources and grey literature. Two reviewers applied eligibility criteria to the title and abstract screening, followed by full text screening, before systematically charting the data. Results: 5,731 articles were screened. 29 studies met the selection criteria for qualitative analysis. Using TDF, 14 domains for barriers to effective prescribing were identified. Significant domains include physician-related factors such as “Knowledge”, “Skills”, and “Social/Professional Role and Identity”; issues with “Environmental Context and Resources”; and the impact of “Social Influences” and “Emotion” on prescribing behaviour.Conclusion: The TDF elicited multiple domains which both independently and collectively lead to barriers to effective prescribing in elderly patients in the ambulatory setting. Changing the prescribing climate will thus require interventions targeting multiple stakeholders, including physicians, patients and hospital/clinic systems. Moving forward, we will perform a Delphi study to explore individual domains and ultimately develop a physician-pharmacist collaborative care intervention to guide prescribing for the elderly in the ambulatory setting.