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Updated ATTRIBUTE_DEFINITION (markdown)

clairblacketer 2017-06-20 13:45:29 -04:00
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StandardizedVocabularies/ATTRIBUTE_DEFINITION.md

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The ATTRIBUTE_DEFINITION table contains records defining Attributes, or covariates, to members of a Cohort through an associated description and syntax and upon instantiation (execution of the algorithm) placed into the COHORT_ATTRIBUTE table. Attributes are derived elements that can be selected or calculated for a subject in a Cohort. The ATTRIBUTE_DEFINITION table provides a standardized structure for maintaining the rules governing the calculation of covariates for a subject in a Cohort, and can store operational programming code to instantiate the Attributes for a given Cohort within the OMOP Common Data Model.
Field|Required|Type|Description
:----|:----|:----|:----
:-------------------------|:--------|:-----|:--------------------------------------
|attribute_definition_id|Yes|integer|A unique identifier for each Attribute.|
|attribute_name|Yes|varchar(255)|A short description of the Attribute.|
|attribute_description|No|CLOB|A complete description of the Attribute definition|