We created our data set from a complete extract of the Yale New Haven Health clinical data warehouse (Epic Caboodle) that was transformed into the PCORnet Common Data Model v3.1 (CDM) on February 11, 2019 using our local data analytics platform [35]. The Caboodle source tables and supporting terminology tables were transformed into the demographic, encounter, diagnosis, condition, lab_result_cm, and vital PCORnet CDM tables, which were used for analysis. Diagnosis and condition source were categorized as defined in the PCORnet CDM [36] for OD, BI, and CL which we label as provider, billing, and claims. As a data quality study based on existing and deidentified data, this work was not classified as human subjects research and did not require Institutional Review Board approval.

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