Validation of EHR medication fill data obtained through electronic linkage with pharmacies

作者：Saul Blecker, Samrachana Adhikari, Hanchao Zhang, John A. Dodson, Sunita Desai, Lisa Anzisi, Lily Pazand, Antoinette Schoenthaler, David Mann · 发表于：Journal of Managed Care & Specialty Pharmacy · 年份：2021 · DOI：10.18553/jmcp.2021.27.10.1482 · 被引用次数：44 · 研究领域：Medication Adherence and Compliance、Pharmaceutical Practices and Patient Outcomes、Blood Pressure and Hypertension Studies

BACKGROUND: Recent linkages between electronic health records (EHRs) and pharmacy data hold opportunity for up-to-date assessment of medication adherence at the point of care. OBJECTIVE: To validate linked EHR-pharmacy data, which can be used for point-of-care interventions for concordance with insurance claims data for patients in a large health care delivery system. METHODS: We performed a retrospective cohort study of adult patients with an active antihypertensive medication order and seen as outpatients between August 25, 2019, and August 31, 2019. Pharmacy fill information was obtained from the EHR via linkages with Surescripts pharmacy and pharmacy benefit manager data, as well as from insurance claims available at our institution. We matched antihypertensive medication fills observed in the linked EHR-pharmacy database with available fills in the insurance claims database and calculated the percentage of medication fills that were available in each database. We estimated medication adherence using proportion of days covered in the linked EHR-pharmacy database and in the insurance claims database. RESULTS: Of 26,679 patients with hypertension, 23,348 (87.5%) had at least 1 antihypertensive medication fill recorded in the linked EHR-pharmacy database. Of 1,501 patients matched with the insurance database and with a documented medication fill, a fill was present for 1,484 (98.9%) and 1,259 (83.9%) patients in the linked EHR-pharmacy and insurance databases, respectively. ...