description: The EvidenceVariable resource describes an element that knowledge (Evidence) is about.
package_name: hl7.fhir.r5.core
derivation: specialization
name: EvidenceVariable
type: EvidenceVariable
elements:
  description: {short: Natural language description of the evidence variable, type: markdown, isSummary: true, index: 9}
  category:
    type: BackboneElement
    short: A grouping for ordinal or polychotomous variables
    array: true
    index: 39
    elements:
      name: {type: string, short: Description of the grouping, index: 40}
      value:
        short: Definition of the grouping
        choices: [valueCodeableConcept, valueQuantity, valueRange]
        index: 42
      valueCodeableConcept: {type: CodeableConcept, short: Definition of the grouping, choiceOf: value, index: 43}
      valueQuantity: {type: Quantity, short: Definition of the grouping, choiceOf: value, index: 44}
      valueRange: {type: Range, short: Definition of the grouping, choiceOf: value, index: 45}
  date: {short: Date last changed, type: dateTime, isSummary: true, index: 8}
  endorser: {short: Who endorsed the content, type: ContactDetail, array: true, index: 17}
  publisher: {short: Name of the publisher (organization or individual), type: string, isSummary: true, index: 12}
  name: {short: Name for this evidence variable (computer friendly), type: string, isSummary: true, index: 3}
  useContext: {short: The context that the content is intended to support, type: UsageContext, array: true, isSummary: true, index: 11}
  characteristicCombination:
    type: code
    short: intersection | union
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/characteristic-combination|4.5.0'}
    index: 20
  title: {short: Name for this evidence variable (human friendly), type: string, isSummary: true, index: 4}
  note: {type: Annotation, short: Used for footnotes or explanatory notes, array: true, index: 10}
  author: {short: Who authored the content, type: ContactDetail, array: true, index: 14}
  characteristic:
    short: What defines the members of the evidence element
    type: BackboneElement
    array: true
    isSummary: true
    index: 21
    elements:
      description: {type: string, short: Natural language description of the characteristic, index: 22}
      definition:
        short: What code or expression defines members?
        choices: [definitionReference, definitionCanonical, definitionCodeableConcept, definitionExpression]
        isSummary: true
        index: 24
      exclude: {type: boolean, short: Whether the characteristic includes or excludes members, meaningWhenMissing: 'False', index: 31}
      groupMeasure:
        type: code
        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/group-measure|4.5.0'}
        index: 37
      definitionExpression: {short: 'What code or expression defines members?', type: Expression, choiceOf: definition, isSummary: true, index: 28}
      timeFromStart:
        type: BackboneElement
        short: Observation time from study start
        index: 32
        elements:
          description: {type: string, short: Human readable description, index: 33}
          quantity: {type: Quantity, short: Used to express the observation at a defined amount of time after the study start, index: 34}
          range: {type: Range, short: Used to express the observation within a period after the study start, index: 35}
          note: {type: Annotation, short: Used for footnotes or explanatory notes, array: true, index: 36}
      method:
        type: CodeableConcept
        short: Method used for describing characteristic
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/characteristic-method'}
        index: 29
      definitionCanonical: {short: 'What code or expression defines members?', type: canonical, choiceOf: definition, isSummary: true, index: 26}
      definitionReference:
        short: What code or expression defines members?
        refers: ['http://hl7.org/fhir/StructureDefinition/EvidenceVariable', 'http://hl7.org/fhir/StructureDefinition/Group']
        type: Reference
        choiceOf: definition
        isSummary: true
        index: 25
      definitionCodeableConcept: {short: 'What code or expression defines members?', type: CodeableConcept, choiceOf: definition, isSummary: true, index: 27}
      device:
        type: Reference
        short: Device used for determining characteristic
        refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/DeviceMetric']
        index: 30
    required: [definitionReference, definitionCodeableConcept, definition, definitionCanonical, definitionExpression]
  handling:
    short: continuous | dichotomous | ordinal | polychotomous
    type: code
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/variable-handling|4.5.0'}
    isSummary: true
    index: 38
  status:
    isModifier: true
    short: draft | active | retired | unknown
    type: code
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/publication-status|4.5.0'}
    isModifierReason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
    isSummary: true
    index: 7
  subtitle: {type: string, short: Subordinate title of the EvidenceVariable, index: 6}
  url: {short: 'Canonical identifier for this evidence variable, represented as a URI (globally unique)', type: uri, isSummary: true, index: 0}
  identifier: {short: Additional identifier for the evidence variable, type: Identifier, array: true, isSummary: true, index: 1}
  editor: {type: ContactDetail, short: Who edited the content, array: true, index: 15}
  reviewer: {short: Who reviewed the content, type: ContactDetail, array: true, index: 16}
  shortTitle: {short: Title for use in informal contexts, type: string, isSummary: true, index: 5}
  version: {short: Business version of the evidence variable, type: string, isSummary: true, index: 2}
  relatedArtifact: {short: 'Additional documentation, citations, etc.', type: RelatedArtifact, array: true, index: 18}
  actual: {type: boolean, short: Actual or conceptual, index: 19}
  contact: {short: Contact details for the publisher, type: ContactDetail, array: true, isSummary: true, index: 13}
package_version: 4.5.0
class: resource
kind: resource
url: http://hl7.org/fhir/StructureDefinition/EvidenceVariable
base: http://hl7.org/fhir/StructureDefinition/MetadataResource
version: 4.5.0
required: [status]