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Exploring Validated Self-Reported Instruments to Assess Adherence to Medications Used: A Review Comparing Existing
Razan Izzat Nassar1, Iman Amin Basheti1, Bandana Saini2
1Department of Clinical Pharmacy and Therapeutics, Faculty of Pharmacy, Applied Science Private University, Amman, Jordan.
Patient Preference and Adherence
|March 3, 2022
Summary
Selecting the right medication adherence instrument is crucial for healthcare teams, especially pharmacists. No single tool is perfect, so choose based on specific needs, population, and psychometric properties.
Area of Science:
- Pharmacology
- Health Services Research
- Psychometrics
Background:
- Medication adherence is critical for treatment success.
- Healthcare providers, particularly pharmacists, need reliable tools to assess patient adherence.
- Existing adherence assessment instruments vary in their properties and applicability.
Purpose of the Study:
- To review and summarize available medication adherence assessment instruments.
- To aid healthcare professionals in selecting appropriate adherence measurement tools.
- To highlight instruments suitable for use by healthcare teams, including pharmacists.
Main Methods:
- Systematic literature search of PubMed, Medline, Embase, and Google Scholar.
- Inclusion of psychometrically evaluated questionnaires with 30 or fewer items.
- Evaluation of instruments based on reliability, validity, sensitivity, specificity, and completion time.
Main Results:
- Twelve medication adherence instruments were identified and reviewed.
- Instruments differed in item count, reliability, validity, sensitivity, and specificity.
- No single instrument excelled across all evaluated psychometric criteria.
Conclusions:
- Multiple instruments exist for assessing medication adherence, each with unique strengths and weaknesses.
- Instrument selection should consider specific patient populations, desired psychometric properties (sensitivity, specificity), and practical factors like completion time.
- Validated adherence assessment tools can foster better teamwork between healthcare providers and patients, improving adherence support.
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