{"caseSensitive":true,"concept":[{"code":"continuous","definition":"A continuous variable is one for which, within the limits the variable ranges, any value is possible (from STATO http://purl.obolibrary.org/obo/STATO_0000251).","display":"continuous variable"},{"code":"dichotomous","definition":"A dichotomous variable is a categorical variable which is defined to have only 2 categories or possible values (from STATO http://purl.obolibrary.org/obo/STATO_0000090).","display":"dichotomous variable"},{"code":"ordinal","definition":"An ordinal variable is a categorical variable where the discrete possible values are ordered or correspond to an implicit ranking (from STATO http://purl.obolibrary.org/obo/STATO_0000228).","display":"ordinal variable"},{"code":"polychotomous","definition":"A polychotomous variable is a categorical variable which is defined to have minimally 2 categories or possible values. (from STATO  http://purl.obolibrary.org/obo/STATO_0000087).  Suggestion to limit code use to situations when neither dichotomous nor ordinal variables apply.","display":"polychotomous variable"}],"contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"},{"system":"email","value":"fhir@lists.hl7.org"}]}],"content":"complete","date":"2021-01-05T10:01:24+11:00","description":"The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).","experimental":false,"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"cds"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"trial-use"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":5}],"id":"variable-handling","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.4.642.4.1956"}],"jurisdiction":[{"coding":[{"code":"001","display":"World","system":"http://unstats.un.org/unsd/methods/m49/m49.htm"}]}],"meta":{"lastUpdated":"2023-03-26T15:21:02.749+11:00","profile":["http://hl7.org/fhir/StructureDefinition/shareablecodesystem"]},"name":"EvidenceVariableHandling","publisher":"HL7 (FHIR Project)","resourceType":"CodeSystem","status":"active","text":{"div":"<div xmlns=\"http://www.w3.org/1999/xhtml\"><p>This code system <code>http://hl7.org/fhir/variable-handling</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\">continuous<a name=\"variable-handling-continuous\"> </a></td><td>continuous variable</td><td>A continuous variable is one for which, within the limits the variable ranges, any value is possible (from STATO http://purl.obolibrary.org/obo/STATO_0000251).</td></tr><tr><td style=\"white-space:nowrap\">dichotomous<a name=\"variable-handling-dichotomous\"> </a></td><td>dichotomous variable</td><td>A dichotomous variable is a categorical variable which is defined to have only 2 categories or possible values (from STATO http://purl.obolibrary.org/obo/STATO_0000090).</td></tr><tr><td style=\"white-space:nowrap\">ordinal<a name=\"variable-handling-ordinal\"> </a></td><td>ordinal variable</td><td>An ordinal variable is a categorical variable where the discrete possible values are ordered or correspond to an implicit ranking (from STATO http://purl.obolibrary.org/obo/STATO_0000228).</td></tr><tr><td style=\"white-space:nowrap\">polychotomous<a name=\"variable-handling-polychotomous\"> </a></td><td>polychotomous variable</td><td>A polychotomous variable is a categorical variable which is defined to have minimally 2 categories or possible values. (from STATO  http://purl.obolibrary.org/obo/STATO_0000087).  Suggestion to limit code use to situations when neither dichotomous nor ordinal variables apply.</td></tr></table></div>","status":"generated"},"title":"Evidence Variable Handling","url":"http://hl7.org/fhir/variable-handling","valueSet":"http://hl7.org/fhir/ValueSet/variable-handling","version":"5.0.0"}