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Published on: July 21, 2023
Initiation and Single Dispensing in Cardiovascular and Insulin Medications: Prevalence and Explanatory Factors
Carles Vilaplana-Carnerero1,2, Ignacio Aznar-Lou1,3, María Teresa Peñarrubia-María3,4,5
1Research and Development Unit, Institut de Recerca Sant Joan de Déu, 08830 Barcelona, Catalonia, Spain.
Background:
Adherence problems have negative effects on health, but there is little information on the magnitude of non-initiation and single dispensing.
Objective:
The aim of this study was to estimate the prevalence of non-initiation and single dispensation and identify associated predictive factors for the main treatments prescribed in Primary Care (PC) for cardiovascular disease (CVD) and diabetes.
Methods:
Cohort study with real-world data. Patients who received a first prescription (2013-2014) for insulins, platelet aggregation inhibitors, angiotensin-converting enzyme inhibitors (ACEI) or statins in Catalan PC were included. The prevalence of non-initiation and single dispensation was calculated. Factors that explained these behaviours were explored.
Results:
At three months, between 5.7% (ACEI) and 9.1% (antiplatelets) of patients did not initiate their treatment and between 10.6% (statins) and 18.4% (ACEI) filled a single prescription. Body mass index, previous CVD, place of origin and having a substitute prescriber, among others, influenced the risk of non-initiation and single dispensation.
Conclusions:
The prevalence of non-initiation and single dispensation of CVD medications and insulin prescribed in PC in is high. Patient and health-system factors, such as place of origin and type of prescriber, should be taken into consideration when prescribing new medications for CVD and diabetes.
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