type: codesystemcodesystem: variable-handling-example
Evidence Variable Handling Example
- Official URL: http://hl7.org/fhir/variable-handling-example
- Version: 6.0.0
- Status: active
- Name: EvidenceVariableHandlingExample
- Title: Evidence Variable Handling Example
- Publisher: HL7 (FHIR Project)
- Description: The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).
- Case Sensitive: true
- Content: complete
Concepts
| Code | Display | Definition |
|---|---|---|
| boolean | boolean variable | A boolean variable is a variable which is defined to have only 2 possible values: True or False. |
| continuous | continuous variable | 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). |
| dichotomous | dichotomous variable | 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). |
| ordinal | ordinal variable | 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). |
| polychotomous | polychotomous variable | 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. |
| time-to-event | time-to-event | time-to-event |
| not-specified | not-specified | not-specified |
CodeSystem XML
<?xml version="1.0" encoding="UTF-8"?>
<CodeSystem xmlns="http://hl7.org/fhir">
<id value="variable-handling-example"/>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
<valueCode value="cds"/>
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
<valueCode value="normative"/>
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
<valueInteger value="5"/>
</extension>
<url value="http://hl7.org/fhir/variable-handling-example"/>
<version value="6.0.0"/>
<name value="EvidenceVariableHandlingExample"/>
<title value="Evidence Variable Handling Example"/>
<status value="active"/>
<experimental value="false"/>
<date value="2021-01-05T10:01:24+11:00"/>
<publisher value="HL7 (FHIR Project)"/>
<contact>
<telecom>
<system value="url"/>
<value value="http://hl7.org/fhir"/>
</telecom>
<telecom>
<system value="email"/>
<value value="fhir@lists.hl7.org"/>
</telecom>
</contact>
<description value="The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive)."/>
<caseSensitive value="true"/>
<valueSet value="http://hl7.org/fhir/ValueSet/variable-handling-example"/>
<content value="complete"/>
<concept>
<code value="boolean"/>
<display value="boolean variable"/>
<definition value="A boolean variable is a variable which is defined to have only 2 possible values: True or False."/>
</concept>
<concept>
<code value="continuous"/>
<display value="continuous variable"/>
<definition value="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)."/>
</concept>
<concept>
<code value="dichotomous"/>
<display value="dichotomous variable"/>
<definition value="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)."/>
</concept>
<concept>
<code value="ordinal"/>
<display value="ordinal variable"/>
<definition value="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)."/>
</concept>
<concept>
<code value="polychotomous"/>
<display value="polychotomous variable"/>
<definition value="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."/>
</concept>
<concept>
<code value="time-to-event"/>
<display value="time-to-event"/>
<definition value="time-to-event"/>
</concept>
<concept>
<code value="not-specified"/>
<display value="not-specified"/>
<definition value="not-specified"/>
</concept>
</CodeSystem>