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Medication adherence: its importance in cardiovascular outcomes.
P Michael Ho1, Chris L Bryson, John S Rumsfeld
1Denver VA Medical Center, Denver, CO, USA. michael.ho@va.gov
Circulation
|June 17, 2009
Summary
Medication nonadherence is common and linked to poor health outcomes and increased costs. Improving patient adherence requires understanding measurement, prevalence, reasons, and interventions.
Area of Science:
- Health Services Research
- Clinical Pharmacy
- Patient Adherence Studies
Background:
- Medication adherence, encompassing correct dosage and continuation of therapy, is critical for effective treatment.
- Medication nonadherence presents a significant challenge, leading to adverse health outcomes and escalating healthcare expenditures.
- Current clinical practice rarely measures patient medication adherence or implements interventions to improve it.
Purpose of the Study:
- To review methods for measuring medication adherence.
- To examine the prevalence and reasons behind medication nonadherence.
- To explore the association between nonadherence and patient outcomes, and to discuss interventions for improvement.
Main Methods:
- Literature review of adherence measurement techniques.
- Analysis of prevalence data on medication nonadherence.
- Synthesis of studies on the impact of nonadherence on health outcomes.
- Review of identified reasons for nonadherence.
- Compilation of evidence-based interventions to enhance medication adherence.
Main Results:
- Various methods exist for measuring medication adherence, though their use in practice is limited.
- Medication nonadherence is prevalent across diverse patient populations and therapeutic areas.
- Nonadherence is strongly associated with poorer clinical outcomes and increased healthcare costs.
- Multiple factors contribute to nonadherence, including patient-related, medication-related, and healthcare system-related issues.
- A range of interventions, from behavioral strategies to technological solutions, can improve medication adherence.
Conclusions:
- Addressing medication nonadherence is crucial for improving patient outcomes and reducing healthcare costs.
- Systematic measurement and targeted interventions are needed to enhance medication adherence in routine clinical practice.
- Further research should focus on optimizing adherence interventions and integrating them into standard care pathways.
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