{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T12:02:46Z","timestamp":1780056166500,"version":"3.54.0"},"reference-count":36,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2016,10,4]],"date-time":"2016-10-04T00:00:00Z","timestamp":1475539200000},"content-version":"vor","delay-in-days":602,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Objectives To evaluate the utility of applying the Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM) across multiple observational databases within an organization and to apply standardized analytics tools for conducting observational research.<\/jats:p>\n               <jats:p>Materials and methods Six deidentified patient-level datasets were transformed to the OMOP CDM. We evaluated the extent of information loss that occurred through the standardization process. We developed a standardized analytic tool to replicate the cohort construction process from a published epidemiology protocol and applied the analysis to all 6 databases to assess time-to-execution and comparability of results.<\/jats:p>\n               <jats:p>Results Transformation to the CDM resulted in minimal information loss across all 6 databases. Patients and observations excluded were due to identified data quality issues in the source system, 96% to 99% of condition records and 90% to 99% of drug records were successfully mapped into the CDM using the standard vocabulary. The full cohort replication and descriptive baseline summary was executed for 2 cohorts in 6 databases in less than 1 hour.<\/jats:p>\n               <jats:p>Discussion The standardization process improved data quality, increased efficiency, and facilitated cross-database comparisons to support a more systematic approach to observational research. Comparisons across data sources showed consistency in the impact of inclusion criteria, using the protocol and identified differences in patient characteristics and coding practices across databases.<\/jats:p>\n               <jats:p>Conclusion Standardizing data structure (through a CDM), content (through a standard vocabulary with source code mappings), and analytics can enable an institution to apply a network-based approach to observational research across multiple, disparate observational health databases.<\/jats:p>","DOI":"10.1093\/jamia\/ocu023","type":"journal-article","created":{"date-parts":[[2015,2,11]],"date-time":"2015-02-11T04:04:50Z","timestamp":1423627490000},"page":"553-564","source":"Crossref","is-referenced-by-count":306,"title":["Feasibility and utility of applications of the common data model to multiple, disparate observational health databases"],"prefix":"10.1093","volume":"22","author":[{"given":"Erica 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Titusville, New Jersey, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martijn","family":"Schuemie","sequence":"additional","affiliation":[{"name":"Epidemiology Analytics, Janssen Research & Development, Titusville, New Jersey, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank J","family":"DeFalco","sequence":"additional","affiliation":[{"name":"Epidemiology Analytics, Janssen Research & Development, Titusville, New Jersey, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ajit","family":"Londhe","sequence":"additional","affiliation":[{"name":"Medical Informatics, Janssen Research & Development, Titusville, New Jersey, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vivienne","family":"Zhu","sequence":"additional","affiliation":[{"name":"Epidemiology Analytics, Janssen Research & Development, Titusville, New Jersey, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick 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