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How is the Medication Possession Ratio (MPR) calculated?
Days supply divided by number of patients
Sum of days' supply divided by number of days in period
Total prescriptions filled divided by total days
Number of medications divided by days in period
The correct answer is: Sum of days' supply divided by number of days in period
The Medication Possession Ratio (MPR) is a metric used to assess patient adherence to prescribed medications. It is calculated by taking the sum of all days' supply of medications a patient has within a specified time period and dividing that by the total number of days in that same period. This measure helps to determine how much medication a patient has access to compared to what is expected over the given timeframe. This method provides an accurate reflection of a patient’s medication availability and adherence. A higher MPR indicates better adherence to the prescribed regimen, suggesting that the patient is consistently obtaining and potentially taking their medications as prescribed over the examined timeframe. In comparison, the other options do not accurately reflect the MPR calculation. Options focusing on the number of patients, total prescriptions, or the number of medications do not directly measure the ratio of available medication over time. Thus, combining the sum of the days' supply against the overall number of days is essential for understanding medication adherence effectively.