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        <title>Observational Health Data Sciences and Informatics</title>
        <link>https://www.ohdsi.org/web/wiki/</link>
        <url>https://www.ohdsi.org/web/wiki/lib/exe/fetch.php?media=wiki:favicon.ico</url>
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        <dc:date>2017-09-25T14:59:31+0000</dc:date>
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        <title>documentation:cdm:attribute_definition</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:attribute_definition&amp;rev=1506351571&amp;do=diff</link>
        <description>ATTRIBUTE_DEFINITION table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

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. Th…</description>
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        <dc:date>2017-09-25T14:55:58+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:background</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:background&amp;rev=1506351358&amp;do=diff</link>
        <description>Background

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The Observational Medical Outcomes Partnership (OMOP) was a public-private partnership established to inform the appropriate use of observational healthcare databases for studying the effects of medical products. Over the course of the 5-year project and through its community of researchers from industry, government, and academia, OMOP successfully achie…</description>
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        <dc:date>2017-09-25T15:08:00+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:care_site</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:care_site&amp;rev=1506352080&amp;do=diff</link>
        <description>CARE_SITE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CARE_SITE table contains a list of uniquely identified institutional (physical or organizational) units where healthcare delivery is practiced (offices, wards, hospitals, clinics, etc.).</description>
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        <dc:date>2017-09-25T14:59:49+0000</dc:date>
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        <title>documentation:cdm:cdm_source</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:cdm_source&amp;rev=1506351589&amp;do=diff</link>
        <description>CDM_SOURCE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CDM_SOURCE table contains detail about the source database and the process used to transform the data into the OMOP Common Data Model.</description>
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        <dc:date>2017-09-25T14:57:01+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:changes_from_version_4.0</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:changes_from_version_4.0&amp;rev=1506351421&amp;do=diff</link>
        <description>Changes from CDM Version 4

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The changes can be summarized into the following categories:

	*  New tables and fields
	*  Changes to existing tables and fields</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:09:02+0000</dc:date>
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        <title>documentation:cdm:cohort</title>
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        <description>COHORT table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The COHORT table contains records of subjects that satisfy a given set of criteria for a duration of time. The definition of the cohort is contained within the COHORT_DEFINITION table. Cohorts can be constructed of patients (Persons), Providers or Visits.</description>
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        <dc:date>2017-09-25T15:09:12+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:cohort_attribute</title>
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        <description>COHORT_ATTRIBUTE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The COHORT_ATTRIBUTE table contains attributes associated with each subject within a cohort, as defined by a given set of criteria for a duration of time. The definition of the Cohort Attribute is contained in the ATTRIBUTE_DEFINITION table.</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:59:22+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:cohort_definition</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:cohort_definition&amp;rev=1506351562&amp;do=diff</link>
        <description>COHORT_DEFINITION table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The COHORT_DEFINITION table contains records defining a Cohort derived from the data through the associated description and syntax and upon instantiation (execution of the algorithm) placed into the COHORT table. Cohorts are a set of subjects that satisfy a given combination of inclusion criteria for a duration of time. The COHORT_DEFINITION…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-02-03T19:09:58+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:common_data_model</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:common_data_model&amp;rev=1486148998&amp;do=diff</link>
        <description>OMOP Common Data Model V5.0.1

Initial Release: 1-Oct-2014, latest release 5-Apr-2016

Rimma Belenkaya, Christian Reich, Patrick Ryan and the OHDSI CDM Workgroup Team

For a consolidated one-document version click here</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:57:33+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:concept</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:concept&amp;rev=1506351453&amp;do=diff</link>
        <description>CONCEPT table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The Standardized Vocabularies contains records, or Concepts, that uniquely identify each fundamental unit of meaning used to express clinical information in all domain tables of the CDM. Concepts are derived from vocabularies, which represent clinical information across a domain (e.g. conditions, drugs, procedures) through the use of codes and associa…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-10-02T21:29:58+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:concept_ancestor</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:concept_ancestor&amp;rev=1506979798&amp;do=diff</link>
        <description>CONCEPT_ANCESTOR table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CONCEPT_ANCESTOR table is designed to simplify observational analysis by providing the complete hierarchical relationships between Concepts. Only direct parent-child relationships between Concepts are stored in the CONCEPT_RELATIONSHIP table. To determine higher level ancestry connections, all individual direct relationships would have to…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:58:05+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:concept_class</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:concept_class&amp;rev=1506351485&amp;do=diff</link>
        <description>CONCEPT_CLASS table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CONCEPT_CLASS table is a reference table, which includes a list of the classifications used to differentiate Concepts within a given Vocabulary. This reference table is populated with a single record for each Concept Class:</description>
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        <dc:date>2017-09-25T14:58:15+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:concept_relationship</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:concept_relationship&amp;rev=1506351495&amp;do=diff</link>
        <description>CONCEPT_RELATIONSHIP table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CONCEPT_RELATIONSHIP table contains records that define direct relationships between any two Concepts and the nature or type of the relationship. Each type of a relationship is defined in the</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:58:42+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:concept_synonym</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:concept_synonym&amp;rev=1506351522&amp;do=diff</link>
        <description>CONCEPT_SYNONYM table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CONCEPT_SYNONYM table is used to store alternate names and descriptions for Concepts. 
FieldRequiredTypeDescriptionconcept_id</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:condition_era&amp;rev=1506352178&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:09:38+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:condition_era</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:condition_era&amp;rev=1506352178&amp;do=diff</link>
        <description>CONDITION_ERA table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

A Condition Era is defined as a span of time when the Person is assumed to have a given condition. 
Similar to Drug Eras, Condition Eras are chronological periods of Condition Occurrence. Combining individual Condition Occurrences into a single Condition Era serves two purposes:</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:condition_occurrence&amp;rev=1506351732&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:12+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:condition_occurrence</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:condition_occurrence&amp;rev=1506351732&amp;do=diff</link>
        <description>CONDITION_OCCURRENCE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The fields condition_start_datetime and condition_end_datetime were added. For 5.0.1, this table changed in version 5.X of the OMOP CDM. The fields condition_status_concept_id and condition_status_source_value were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:cost&amp;rev=1506352118&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:08:38+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:cost</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:cost&amp;rev=1506352118&amp;do=diff</link>
        <description>COST table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table was added with version 5.0.1 (5-Apr-2016) of the OMOP CDM. It replaces the VISIT_COST, PROCEDURE_COST, DRUG_COST and DEVICE_COST tables.

----------

This table changed in version 5.X of the OMOP CDM. The fields DRG_concept_id and DRG_source_value were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:data_model_conventions&amp;rev=1506351409&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:56:49+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:data_model_conventions</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:data_model_conventions&amp;rev=1506351409&amp;do=diff</link>
        <description>Data Model Conventions

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

There are a number of implicit and explicit conventions that have been adopted in the CDM. Developers of methods that run methods against the CDM need to understand these conventions.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:death&amp;rev=1506351642&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:42+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:death</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:death&amp;rev=1506351642&amp;do=diff</link>
        <description>DEATH table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The death_datetime was added.

----------

The death domain contains the clinical event for how and when a Person dies. A person can have up to one record if the source system contains evidence about the Death, such as:</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:design_principles&amp;rev=1506351389&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:56:29+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:design_principles</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:design_principles&amp;rev=1506351389&amp;do=diff</link>
        <description>Design Principles

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CDM is designed to include all observational health data elements (experiences of the patient receiving health care) that are relevant for analysis use cases to support the generation of reliable scientific evidence about disease natural history, healthcare delivery, effects of medical interventions, the identification of demographic informati…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:details_of_the_model&amp;rev=1506351397&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:56:37+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:details_of_the_model</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:details_of_the_model&amp;rev=1506351397&amp;do=diff</link>
        <description>Details of the Model

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The CDM defines table structures in a person-centric way. At a minimum, the tables have a foreign key into the Person table and a date. This allows for a longitudinal view on all the healthcare-relevant events. The exceptions from this rule are the standardized health system data tables, which are linked directly to events of the various domain…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:device_cost&amp;rev=1462305406&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2016-05-03T19:56:46+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:device_cost</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:device_cost&amp;rev=1462305406&amp;do=diff</link>
        <description>DEVICE_COST table

As of version 5.0.1 (5-Apr-2016), this table is no longer part of the OMOP CDM. It is replaced by the COST table.

For prior definition, see below.

----------

The DEVICE_COST table captures the cost of a medical Device or supply used on a Person. The information about the cost is only derived from the amounts paid for the device.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:device_exposure&amp;rev=1506351720&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:00+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:device_exposure</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:device_exposure&amp;rev=1506351720&amp;do=diff</link>
        <description>DEVICE_EXPOSURE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The fields device_exposure_start_datetime and device_exposure_end_datetime were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:domain&amp;rev=1506351477&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:57:57+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:domain</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:domain&amp;rev=1506351477&amp;do=diff</link>
        <description>DOMAIN table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The DOMAIN table includes a list of OMOP-defined Domains the Concepts of the Standardized Vocabularies can belong to. A Domain defines the set of allowable Concepts for the standardized fields in the CDM tables. For example, the</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:dose_era&amp;rev=1506352170&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:09:30+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:dose_era</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:dose_era&amp;rev=1506352170&amp;do=diff</link>
        <description>DOSE_ERA table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

A Dose Era is defined as a span of time when the Person is assumed to be exposed to a constant dose of a specific active ingredient.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_cost&amp;rev=1462305539&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2016-05-03T19:58:59+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:drug_cost</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_cost&amp;rev=1462305539&amp;do=diff</link>
        <description>DRUG_COST table

As of version 5.0.1 (5-Apr-2016), this table is no longer part of the OMOP CDM. It is replaced by the COST table.

For prior definition, see below.

----------

The DRUG_COST table captures records containing the cost of a Drug Exposure. The information about the cost is defined by the amount of money paid by the Person and Payer for the Drug, as well as the charged cost of the Drug. In addition, a reference to the health plan information in the PAYER_PLAN_PERIOD table is stored…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_era&amp;rev=1506352160&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:09:20+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:drug_era</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_era&amp;rev=1506352160&amp;do=diff</link>
        <description>DRUG_ERA table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

A Drug Era is defined as a span of time when the Person is assumed to be exposed to a particular active ingredient. A Drug Era is not the same as a Drug Exposure: Exposures are individual records corresponding to the source when Drug was delivered to the Person, while successive periods of Drug Exposures are combined under certain rules to produce co…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_exposure&amp;rev=1570705832&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2019-10-10T11:10:32+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:drug_exposure</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_exposure&amp;rev=1570705832&amp;do=diff</link>
        <description>DRUG_EXPOSURE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The fields drug_exposure_start_datetime and drug_exposure_end_datetime were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_strength&amp;rev=1506351552&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:59:12+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:drug_strength</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:drug_strength&amp;rev=1506351552&amp;do=diff</link>
        <description>DRUG_STRENGTH table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table had the field denominator_value added with version 5.0.1 (5-Apr-2016) of the OMOP CDM.

----------

The DRUG_STRENGTH table contains structured content about the amount or concentration and associated units of a specific ingredient contained within a particular drug product. This table is supplemental information to support standardiz…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:fact_relationship&amp;rev=1506352050&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:07:30+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:fact_relationship</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:fact_relationship&amp;rev=1506352050&amp;do=diff</link>
        <description>FACT_RELATIONSHIP table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The FACT_RELATIONSHIP table contains records about the relationships between facts stored as records in any table of the CDM. Relationships can be defined between facts from the same domain (table), or different domains. Examples of Fact Relationships include: Person relationships (parent-child), care site relationships (hierarchical organiz…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:glossary_of_terms&amp;rev=1506351432&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:57:12+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:glossary_of_terms</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:glossary_of_terms&amp;rev=1506351432&amp;do=diff</link>
        <description>Glossary of Terms

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information
TermAbbr.DescriptionAncestor The higher level Concept in a hierarchical relationship. Note that ancestors and descendants can be many levels apart from each other.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:index&amp;rev=1417485881&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2014-12-02T02:04:41+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:index</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:index&amp;rev=1417485881&amp;do=diff</link>
        <description>Common Data Model

	*  License
	*  Background
	*  The Role of the Common Data Model
			*  Design Principles
			*  Details of the Model
			*  Data Model Conventions
			*  Changes from Version 4.0
			*  Glossary of Terms

	*  Standardized Vocabularies
			*  CONCEPT
			*  VOCABULARY
			*  DOMAIN
			*  CONCEPT_CLASS
			*  CONCEPT_RELATIONSHIP
			*  RELATIONSHIP
			*  CONCEPT_SYNONYM
			*  CONCEPT_ANCESTOR
			*  SOURCE_TO_CONCEPT_MAP
			*  DRUG_STRENGTH
			*  COHORT_DEFINITION
			*  ATTRIBUTE_DEFINIT…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:license&amp;rev=1506351340&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:55:40+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:license</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:license&amp;rev=1506351340&amp;do=diff</link>
        <description>License

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

© 2014  Observational Health Data Sciences and Informatics

This work is based on work by the Observational Medical Outcomes Partnership (OMOP) and used under license from the FNIH at</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:location&amp;rev=1506352071&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:07:51+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:location</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:location&amp;rev=1506352071&amp;do=diff</link>
        <description>LOCATION table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The LOCATION table represents a generic way to capture physical location or address informationof Persons and Care Sites.
FieldRequired</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:measurement&amp;rev=1506351741&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:21+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:measurement</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:measurement&amp;rev=1506351741&amp;do=diff</link>
        <description>MEASUREMENT table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The field measurement_datetime was added.

----------

The MEASUREMENT table contains records of Measurement, i.e. structured values (numerical or categorical) obtained through systematic and standardized examination or testing of a Person or Person's sample. The MEASUREMENT table contains both or…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:note&amp;rev=1506351751&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:31+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:note</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:note&amp;rev=1506351751&amp;do=diff</link>
        <description>NOTE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.2 of the OMOP CDM. The fields note_datetime, note_class_concept_id, note_title, encoding_concept_id, language_concept_id were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:note_nlp&amp;rev=1506351761&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:41+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:note_nlp</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:note_nlp&amp;rev=1506351761&amp;do=diff</link>
        <description>NOTE_NLP table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table was added with version 5.2 (1-Feb-2017) of the OMOP CDM.

---

The NOTE table encodes all output of NLP on clinical notes. Each row represents a single extracted term from a note.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:observation&amp;rev=1506351771&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:02:51+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:observation</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:observation&amp;rev=1506351771&amp;do=diff</link>
        <description>OBSERVATION table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The field observation_datetime was added.

----------

The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, fam…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:observation_period&amp;rev=1506351622&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:22+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:observation_period</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:observation_period&amp;rev=1506351622&amp;do=diff</link>
        <description>OBSERVATION_PERIOD table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The OBSERVATION_PERIOD table contains records which uniquely define the spans of time for which a Person is at-risk to have clinical events recorded within the source systems, even if no events in fact are recorded (healthy patient with no healthcare interactions).</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:payer_plan_period&amp;rev=1506352108&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:08:28+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:payer_plan_period</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:payer_plan_period&amp;rev=1506352108&amp;do=diff</link>
        <description>PAYER_PLAN_PERIOD table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The PAYER_PLAN_PERIOD table captures details of the period of time that a Person is continuously enrolled under a specific health Plan benefit structure from a given Payer. Each Person receiving healthcare is typically covered by a health benefit plan, which pays for (fully or partially), or directly provides, the care. These benefit plans a…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:person&amp;rev=1506351613&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:13+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:person</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:person&amp;rev=1506351613&amp;do=diff</link>
        <description>PERSON table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The name of the field time_of_birth was changed to birth_datetime. 

----------</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:preview&amp;rev=1489723678&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-03-17T04:07:58+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:preview</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:preview&amp;rev=1489723678&amp;do=diff</link>
        <description>NOTE table

This table changed in version 5.2 of the OMOP CDM. The fields note_datetime, note_class_concept_id, note_title, encoding_concept_id, language_concept_id were added. 

----------

The NOTE table captures unstructured information that was recorded by a provider about a patient in free text notes on a given date.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:procedure_cost&amp;rev=1462305081&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2016-05-03T19:51:21+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:procedure_cost</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:procedure_cost&amp;rev=1462305081&amp;do=diff</link>
        <description>PROCEDURE_COST table

As of version 5.0.1 (5-Apr-2016), this table is no longer part of the OMOP CDM. It is replaced by the COST table.

For prior definition, see below.

----------

The PROCEDURE_COST table captures the cost of a Procedure performed on a Person. The information about the cost is only derived from the amounts paid for the Procedure. This is in contrast to the Drug Cost data which also contain information about true amount charged by the distributor. In addition, Revenue codes ar…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:procedure_occurrence&amp;rev=1506351663&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:01:03+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:procedure_occurrence</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:procedure_occurrence&amp;rev=1506351663&amp;do=diff</link>
        <description>PROCEDURE_OCCURRENCE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The field procedure_datetime was added. 

----------

The PROCEDURE_OCCURRENCE tabe contains records of activities or processes ordered by, or carried out by, a healthcare provider on the patient to have a diagnostic or therapeutic purpose. Procedures are present in various data sources i…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:provider&amp;rev=1506352090&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:08:10+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:provider</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:provider&amp;rev=1506352090&amp;do=diff</link>
        <description>PROVIDER table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The PROVIDER table contains a list of uniquely identified healthcare providers. These are individuals providing hands-on healthcare to patients, such as physicians, nurses, midwives, physical therapists etc.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:relationship&amp;rev=1506351509&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:58:29+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:relationship</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:relationship&amp;rev=1506351509&amp;do=diff</link>
        <description>RELATIONSHIP table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The RELATIONSHIP table provides a reference list of all types of relationships that can be used to associate any two concepts in the CONCEPT_RELATIONSHP table.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:sidebar&amp;rev=1489725075&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-03-17T04:31:15+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:sidebar</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:sidebar&amp;rev=1489725075&amp;do=diff</link>
        <description>Common Data Model

	*  License
	*  Background
	*  The Role of the Common Data Model
			*  Design Principles
			*  Details of the Model
			*  Data Model Conventions
			*  Changes from Version 4.0
			*  Glossary of Terms

	*  Standardized Vocabularies
			*  CONCEPT
			*  VOCABULARY
			*  DOMAIN
			*  CONCEPT_CLASS
			*  CONCEPT_RELATIONSHIP
			*  RELATIONSHIP
			*  CONCEPT_SYNONYM
			*  CONCEPT_ANCESTOR
			*  SOURCE_TO_CONCEPT_MAP
			*  DRUG_STRENGTH
			*  COHORT_DEFINITION
			*  ATTRIBUTE_DEFINIT…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:single-page&amp;rev=1484235099&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-01-12T15:31:39+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:single-page</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:single-page&amp;rev=1484235099&amp;do=diff</link>
        <description>OMOP Common Data Model V5.1

Consolidated Documentation

License

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

© 2014  Observational Health Data Sciences and Informatics

This work is based on work by the Observational Medical Outcomes Partnership (OMOP) and used under license from the FNIH at</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:source_to_concept_map&amp;rev=1506351543&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:59:03+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:source_to_concept_map</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:source_to_concept_map&amp;rev=1506351543&amp;do=diff</link>
        <description>SOURCE_TO_CONCEPT_MAP table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The source to concept map table is a legacy data structure within the OMOP Common Data Model, recommended for use in ETL processes to maintain local source codes which are not available as Concepts in the Standardized Vocabularies, and to establish mappings for each source code into a Standard Concept as target_concept_ids that can be us…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:specimen&amp;rev=1506351633&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:33+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:specimen</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:specimen&amp;rev=1506351633&amp;do=diff</link>
        <description>SPECIMEN

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed in version 5.1 of the OMOP CDM. The field specimen_datetime was added.

----------

The specimen domain contains the records identifying biological samples from a person.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_clinical_data_tables&amp;rev=1506351600&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:00+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_clinical_data_tables</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_clinical_data_tables&amp;rev=1506351600&amp;do=diff</link>
        <description>Standardized Clinical Data Tables

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

These tables contain the core information about the clinical events that occurred longitudinally during valid Observation Periods for each Person, as well as demographic information for the Person.
Below provides an entity-relationship diagram highlighting the tables within the Standardized Clinical Data portion of the OMOP Common …</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_derived_elements&amp;rev=1506352132&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:08:52+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_derived_elements</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_derived_elements&amp;rev=1506352132&amp;do=diff</link>
        <description>Standardized Derived Elements

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

These tables contain information about the clinical events of a patient that are not obtained directly from the raw source data, but from other tables of the CDM. 
Below provides an entity-relationship diagram highlighting the tables within the Standardized Derived Elements portion of the OMOP Common Data Model:</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_health_economics_data_tables&amp;rev=1506352099&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:08:19+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_health_economics_data_tables</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_health_economics_data_tables&amp;rev=1506352099&amp;do=diff</link>
        <description>Standardized Health Economics Data Tables

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

These tables contain cost information about healthcare. They are dependent on the healthcare delivery system the patient is involved in, which may vary significantly within a country and across different countries. However, the current model is focused on the US healthcare system.
Below provides an entity-relationship diagr…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_health_system_data_tables&amp;rev=1506352062&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:07:42+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_health_system_data_tables</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_health_system_data_tables&amp;rev=1506352062&amp;do=diff</link>
        <description>Standardized Health System Data Tables

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

These tables describe the healthcare provider system responsible for administering the healthcare of the patient, rather than the demographic or clinical events the patient experienced.
Below provides an entity-relationship diagram highlighting the tables within the Standardized Health System portion of the OMOP Common Data Mo…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_meta-data&amp;rev=1506351580&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:59:40+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_meta-data</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_meta-data&amp;rev=1506351580&amp;do=diff</link>
        <description>Standardized Meta-Data

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

Metadata about the data should be derived from the data themselves during ETL. However, the following contains a few key pieces of information that are convenient especially for software applications utilizing the CDM data.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_vocabularies&amp;rev=1506351440&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:57:20+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:standardized_vocabularies</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:standardized_vocabularies&amp;rev=1506351440&amp;do=diff</link>
        <description>Standardized Vocabularies

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

These tables contain detailed information about the Concepts used in all of the CDM fact tables. The content of the Standardized Vocabularies tables is not generated anew by each CDM implementation. Instead, it is maintained centrally as a service to the community.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:the_role_of_the_common_data_model&amp;rev=1506351370&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T14:56:10+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:the_role_of_the_common_data_model</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:the_role_of_the_common_data_model&amp;rev=1506351370&amp;do=diff</link>
        <description>The Role of the Common Data Model

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

No single observational data source provides a comprehensive view of the clinical data a patient accumulates while receiving healthcare, and therefore none can be sufficient to meet all expected outcome analysis needs. This explains the need for assessing and analyzing multiple data sources concurrently using a common data standard…</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:visit_cost&amp;rev=1462304635&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2016-05-03T19:43:55+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:visit_cost</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:visit_cost&amp;rev=1462304635&amp;do=diff</link>
        <description>VISIT_COST table

As of version 5.0.1 (5-Apr-2016), this table is no longer part of the OMOP CDM. It is replaced by the COST table.

For prior definition, see below.

----------

The VISIT_COST table captures the cost of a Visit of a Person not itemized to specific procedures, drugs, or devices used during the Visit.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:visit_occurrence&amp;rev=1506351652&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2017-09-25T15:00:52+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:visit_occurrence</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:visit_occurrence&amp;rev=1506351652&amp;do=diff</link>
        <description>VISIT_OCCURRENCE table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

This table changed version 5.1 of the OMOP CDM. The fields visit_start_datetime and visit_end_datetime were added. For 5.0.1, the fields admitting_source_concept_id, discharge_to_concept_id, admitting_source_value and discharge_to_source_value were added.</description>
    </item>
    <item rdf:about="https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:vocabulary&amp;rev=1578054679&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2020-01-03T12:31:19+0000</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>documentation:cdm:vocabulary</title>
        <link>https://www.ohdsi.org/web/wiki/doku.php?id=documentation:cdm:vocabulary&amp;rev=1578054679&amp;do=diff</link>
        <description>VOCABULARY table

THIS IS OUTDATED. All documentation is now on the github wiki. Please refer there or to the CDM working group for more information

The VOCABULARY table includes a list of the Vocabularies collected from various sources or created de novo by the OMOP community. This reference table is populated with a single record for each Vocabulary source and includes a descriptive name and other associated attributes for the Vocabulary.</description>
    </item>
</rdf:RDF>
