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Patient adherence to prescribed medication instructions for dyspepsia: the DIAMOND-study.
G A J Fransen1, I Mesters, J W M Muris
1Research Institute Caphri, Department of General Practice, Maastricht University, Maastricht, The Netherlands.
The European Journal of General Practice
|May 18, 2012
Summary
Patient adherence to dyspepsia medication is suboptimal, with many patients not completing prescribed doses or following intake instructions. This highlights a need for improved strategies to enhance medication adherence for better treatment outcomes.
Area of Science:
- Gastroenterology
- Pharmacology
- Clinical Research
Background:
- Evaluating the effectiveness of dyspepsia medication requires understanding patient adherence.
- Adherence is a critical factor in assessing treatment efficacy for gastrointestinal conditions.
Purpose of the Study:
- To investigate patient adherence to dyspepsia medication using two outcome measures: completeness and intake fidelity.
- To analyze adherence data from the DIAMOND-study, a pragmatic randomized controlled trial.
Main Methods:
- The DIAMOND-study employed a pragmatic randomized controlled trial (RCT) design comparing 'step-up' and 'step-down' treatment strategies for dyspepsia.
- Participants (n=653) followed multi-step treatment regimens involving antacids, proton pump inhibitors, and H(2)-receptor antagonists over a maximum of 30 days.
- Adherence was assessed through pill counts (completeness) and patient questionnaires (intake fidelity) evaluating timing, frequency, dose, and method of intake.
Main Results:
- In step 1, patients consumed 78% of prescribed doses; step 2, 85%; and step 3, 72%.
- Significant proportions of patients exhibited suboptimal adherence, particularly for four-times-daily (50% <80% adherence) and once-daily (25% <80% adherence) pills.
- Seventy percent of patients reported errors in medication intake fidelity, indicating issues with adherence to specific instructions.
Conclusions:
- Current adherence rates for dyspepsia medication indicate a substantial need for improvement.
- Both the completeness of medication use and the fidelity of intake instructions present opportunities for enhancing patient adherence.
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