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OMOP CDM v6.0
NOTE ABOUT CDM v6.0
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Please be aware that v6.0 of the OMOP CDM is not fully supported by the OHDSI suite of tools and methods. The major difference in CDM v5.3 and CDM v6.0 involves switching the *_datetime fields to mandatory rather than optional. This switch radically changes the assumptions related to exposure and outcome timing. Rather than move forward with v6.0, CDM v5.4 is actively in production to address additions to the model that have been requested by the community while retaining the date structure of medical events in v5.3. Please see our roadmap for more information on which proposals will be included in CDM v5.4. For new collaborators to OHDSI, please transform your data to CDM v5.3 until such time that CDM v5.4 is ready for release.
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Please be aware that v6.0 of the OMOP CDM is not fully supported by the OHDSI suite of tools and methods. The major difference in CDM v5.3 and CDM v6.0 involves switching the *_datetime fields to mandatory rather than optional. This switch radically changes the assumptions related to exposure and outcome timing. Rather than move forward with v6.0, CDM v5.4 was designed with additions to the model that have been requested by the community while retaining the date structure of medical events in v5.3. Please see our the specifications for CDM v5.4 and detailed changes from CDM v5.3. For new collaborators to OHDSI, please transform your data to CDM v5.4 until such time that the v6 series of the CDM is ready for mainstream use.
Below is the specification document for the OMOP Common Data Model, v6.0. Each table is represented with a high-level description and ETL conventions that should be followed. This is continued with a discussion of each field in each table, any conventions related to the field, and constraints that should be followed (like primary key, foreign key, etc). Should you have questions please feel free to visit the forums or the github issue page.
–after regeneration of DDLs link to csv of cdm link to pdf of cdm documentation link to forum on doc page
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-The OMOP Common Data Model is managed by the OHDSI CDM Working Group. If you would like to join our group please fill out this form and check “Common Data Model” to be added to our Microsoft Teams environment. This working group endeavors to maintain the OMOP CDM as a living model by soliciting and responding to requests from the community based on use cases and research purposes. For more information on the CDM refresh process please see the description here. You will find information on our meetings and links to join at the end of this page.
+The Observational Medical Outcomes Partnership (OMOP) Common Data Model (CDM) is an open community data standard, designed to standardize the structure and content of observational data and to enable efficient analyses that can produce reliable evidence. A central component of the OMOP CDM is the OHDSI standardized vocabularies. The OHDSI vocabularies allow organization and standardization of medical terms to be used across the various clinical domains of the OMOP common data model and enable standardized analytics that leverage the knowledge base when constructing exposure and outcome phenotypes and other features within characterization, population-level effect estimation, and patient-level prediction studies.
+This website is meant to serve as a resource describing the specification of the available versions of the Common Data Model. This includes the structure of the model itself and the agreed upon conventions for each table and field as decided by the OHDSI Community. The vocabulary tables are part of the model and, as such, are detailed here. To download the vocabulary itself, please visit https://athena.ohdsi.org. For more information about the OHDSI suite of tools designed to implement best practices in characterization, population-level effect estimation and patient-level prediction, please visit https://ohdsi.github.io/Hades/.
Current CDM Version
The current CDM version is CDM v5.4, depicted below. This CDM version was developed over the course of a year by considering requests that were sent via our issues page. The list of proposed changes was then shared with the community in multiple ways: through discussions at the weekly OHDSI Community calls, discussions with the OHDSI Steering Committee, and discussions with all potentially affected workgroups. The final changes were then delivered to the Community through a new R package designed to dynamically generate the DDLs and documentation for all supported SQL dialects.
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Link to DDLs for CDM v5.4
Link to ReadMe for instructions on how to use the R package
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