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Estimating proportion of days covered (PDC) using real-world online medicine suppliers' datasets.

David Prieto-MerinoAmy MulickCraig ArmstrongHelen HoultScott FawcettLina EliassonSarah Clifford
Published in: Journal of pharmaceutical policy and practice (2021)
These algorithms enable researchers and healthcare providers to assess pharmacy services and individual levels of adherence in real-world databases, particularly in settings where people may switch between different suppliers of medicines, meaning an individual supplier's data may show temporary but legitimate gaps in access to medication. Accurately identifying problems with adherence provides the foundation for opportunities to improve experience, adherence and outcomes and to reduce medicines wastage. Research with people taking medications and prescribers is required to validate the algorithms' assumptions.
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