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TX: CodeSystem variable-handling

Properties

Profile http://hl7.org/fhir/StructureDefinition/shareablecodesystem
Defining URL http://hl7.org/fhir/variable-handling
Version 5.0.0
Name EvidenceVariableHandling
Title Evidence Variable Handling
Status active
Definition

The handling of the variable in statistical analysis for exposures or outcomes (E.g. Dichotomous, Continuous, Descriptive).
Publisher HL7 (FHIR Project)
Committee cds
EXT_FMM_LEVEL 5
Value Set Evidence Variable Handling

This case-sensitive code system http://hl7.org/fhir/variable-handling defines the following codes:

Code Display Definition
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.