Performance of Medometer visual tool for measuring medication adherence and comparison with other measures

Area of Science:

• Geriatric Pharmacology
• Medication Adherence Research
• Health Outcomes Measurement

Background:

• Medication adherence is crucial for therapeutic success in older adults.
• Accurate adherence measurement tools are needed to guide interventions.
• Existing adherence measures have limitations in clinical practice.

Purpose of the Study:

• To evaluate a novel visual scale, the Medometer, for measuring medication adherence in geriatric patients.
• To compare the Medometer's adherence measurements with established tools like the Morisky scale and pharmacist subjective assessments.
• To assess the face validity of the Medometer for individual medications and aggregate regimens.

Main Methods:

• A noncontrolled prospective intervention trial was conducted in a geriatric psychiatry clinic.
• Twenty-six patients completed baseline, 3-month, and 6-month visits.
• The Medometer visual scale was used to assess adherence, compared against the Morisky scale and pharmacist assessments.

Main Results:

• The Medometer demonstrated moderate agreement with the Morisky scale and pharmacist assessments for both individual and aggregate medication adherence.
• Adherence rates varied across measures and time points, with the Medometer showing 48%, 50%, and 46% aggregate adherence at baseline, 3, and 6 months.
• Individual medication adherence measured by the Medometer was 44%, 50%, and 35% at the respective time points.

Conclusions:

• The Medometer is a promising visual tool for assessing medication adherence in older adults.
• The pilot study suggests face validity and moderate agreement with other adherence measures.
• Further research is required to validate the Medometer in diverse populations and assess its impact on medication management outcomes.