{
  "resourceType" : "CodeSystem",
  "id" : "variable-role",
  "meta" : {
    "lastUpdated" : "2024-04-24T00:00:00+00:00"
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem variable-role</b></p><a name=\"variable-role\"> </a><a name=\"hcvariable-role\"> </a><a name=\"variable-role-en-US\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Last updated: 2024-04-24 00:00:00+0000</p></div><p>This case-sensitive code system <code>http://terminology.hl7.org/CodeSystem/variable-role</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">population<a name=\"variable-role-population\"> </a></td><td>population</td><td>variable represents a population.</td></tr><tr><td style=\"white-space:nowrap\">subpopulation<a name=\"variable-role-subpopulation\"> </a></td><td>subpopulation</td><td>variable represents a subpopulation.</td></tr><tr><td style=\"white-space:nowrap\">exposure<a name=\"variable-role-exposure\"> </a></td><td>exposure</td><td>variable represents an exposure.</td></tr><tr><td style=\"white-space:nowrap\">referenceExposure<a name=\"variable-role-referenceExposure\"> </a></td><td>reference exposure</td><td>variable represents a reference exposure.</td></tr><tr><td style=\"white-space:nowrap\">measuredVariable<a name=\"variable-role-measuredVariable\"> </a></td><td>measured variable</td><td>variable represents a measured variable.</td></tr><tr><td style=\"white-space:nowrap\">confounder<a name=\"variable-role-confounder\"> </a></td><td>confounder</td><td>variable represents a confounder.</td></tr><tr><td style=\"white-space:nowrap\">measuredVariableA<a name=\"variable-role-measuredVariableA\"> </a></td><td>measured variable A</td><td>variable represents a first of two measured variables to be used in a measured variable that is a mathematical operation of two measured variables.</td></tr><tr><td style=\"white-space:nowrap\">measuredVariableB<a name=\"variable-role-measuredVariableB\"> </a></td><td>measured variable B</td><td>variable represents a second of two measured variables to be used in a measured variable that is a mathematical operation of two measured variables.</td></tr><tr><td style=\"white-space:nowrap\">measuredVariableAB<a name=\"variable-role-measuredVariableAB\"> </a></td><td>measured variable A to B</td><td>variable represents a result of a mathematical operation of two measured variables.</td></tr></table></div>"
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 0
  }],
  "url" : "http://terminology.hl7.org/CodeSystem/variable-role",
  "identifier" : [{
    "system" : "urn:ietf:rfc:3986",
    "value" : "urn:oid:2.16.840.1.113883.4.642.1.1457"
  }],
  "version" : "2.0.0",
  "name" : "EvidenceVariableRole",
  "title" : "EvidenceVariableRole",
  "status" : "active",
  "experimental" : false,
  "date" : "2024-04-24T00:00:00+00:00",
  "publisher" : "Health Level Seven International",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org"
    },
    {
      "system" : "email",
      "value" : "hq@HL7.org"
    }]
  }],
  "description" : "The role that the assertion variable plays.",
  "copyright" : "This material derives from the HL7 Terminology (THO). THO is copyright ©1989+ Health Level Seven International and is made available under the CC0 designation. For more licensing information see: https://terminology.hl7.org/license.html",
  "caseSensitive" : true,
  "valueSet" : "http://terminology.hl7.org/ValueSet/variable-role",
  "content" : "complete",
  "concept" : [{
    "code" : "population",
    "display" : "population",
    "definition" : "variable represents a population."
  },
  {
    "code" : "subpopulation",
    "display" : "subpopulation",
    "definition" : "variable represents a subpopulation."
  },
  {
    "code" : "exposure",
    "display" : "exposure",
    "definition" : "variable represents an exposure."
  },
  {
    "code" : "referenceExposure",
    "display" : "reference exposure",
    "definition" : "variable represents a reference exposure."
  },
  {
    "code" : "measuredVariable",
    "display" : "measured variable",
    "definition" : "variable represents a measured variable."
  },
  {
    "code" : "confounder",
    "display" : "confounder",
    "definition" : "variable represents a confounder."
  },
  {
    "code" : "measuredVariableA",
    "display" : "measured variable A",
    "definition" : "variable represents a first of two measured variables to be used in a measured variable that is a mathematical operation of two measured variables."
  },
  {
    "code" : "measuredVariableB",
    "display" : "measured variable B",
    "definition" : "variable represents a second of two measured variables to be used in a measured variable that is a mathematical operation of two measured variables."
  },
  {
    "code" : "measuredVariableAB",
    "display" : "measured variable A to B",
    "definition" : "variable represents a result of a mathematical operation of two measured variables."
  }]
}