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: {isModifier: false, short: Natural language description of the evidence variable, type: markdown, mustSupport: false, isSummary: true, index: 9}
  category:
    isModifier: false
    short: A grouping for ordinal or polychotomous variables
    type: BackboneElement
    mustSupport: false
    array: true
    isSummary: false
    index: 43
    elements:
      name: {isModifier: false, short: Description of the grouping, type: string, mustSupport: false, isSummary: false, index: 44}
      value:
        isModifier: false
        short: Definition of the grouping
        mustSupport: false
        choices: [valueCodeableConcept, valueQuantity, valueRange]
        isSummary: false
        index: 46
      valueCodeableConcept: {isModifier: false, short: Definition of the grouping, type: CodeableConcept, mustSupport: false, choiceOf: value, isSummary: false, index: 47}
      valueQuantity: {isModifier: false, short: Definition of the grouping, type: Quantity, mustSupport: false, choiceOf: value, isSummary: false, index: 48}
      valueRange: {isModifier: false, short: Definition of the grouping, type: Range, mustSupport: false, choiceOf: value, isSummary: false, index: 49}
  date: {isModifier: false, short: Date last changed, type: dateTime, mustSupport: false, isSummary: true, index: 8}
  endorser: {isModifier: false, short: Who endorsed the content, type: ContactDetail, mustSupport: false, array: true, isSummary: false, index: 17}
  publisher: {isModifier: false, short: Name of the publisher (organization or individual), type: string, mustSupport: false, isSummary: true, index: 12}
  name: {isModifier: false, short: Name for this evidence variable (computer friendly), type: string, mustSupport: false, isSummary: true, index: 3}
  useContext: {isModifier: false, short: The context that the content is intended to support, type: UsageContext, mustSupport: false, array: true, isSummary: true, index: 11}
  characteristicCombination:
    isModifier: false
    short: Used to specify how two or more characteristics are combined
    type: BackboneElement
    mustSupport: false
    isSummary: false
    index: 20
    elements:
      code:
        isModifier: false
        short: all-of | any-of | at-least | at-most | net-effect
        type: code
        mustSupport: false
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/characteristic-combination|5.0.0-snapshot1'}
        isSummary: false
        index: 21
      threshold: {isModifier: false, short: Provides the value of "n" when "at-least" or "at-most" codes are used, type: positiveInt, mustSupport: false, isSummary: false, index: 22}
    required: [code]
  title: {isModifier: false, short: Name for this evidence variable (human friendly), type: string, mustSupport: false, isSummary: true, index: 4}
  note: {isModifier: false, short: Used for footnotes or explanatory notes, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 10}
  author: {isModifier: false, short: Who authored the content, type: ContactDetail, mustSupport: false, array: true, isSummary: false, index: 14}
  characteristic:
    isModifier: false
    short: What defines the members of the evidence element
    index: 23
    type: BackboneElement
    mustSupport: false
    array: true
    elements:
      description: {isModifier: false, short: Natural language description of the characteristic, type: string, mustSupport: false, isSummary: false, index: 24}
      definition:
        isModifier: false
        short: What code or expression defines members?
        mustSupport: false
        choices: [definitionReference, definitionCanonical, definitionCodeableConcept, definitionExpression]
        isSummary: true
        index: 27
      exclude: {isModifier: false, short: Whether the characteristic includes or excludes members, type: boolean, mustSupport: false, meaningWhenMissing: 'False', isSummary: false, index: 34}
      groupMeasure:
        isModifier: false
        short: mean | median | mean-of-mean | mean-of-median | median-of-mean | median-of-median
        type: code
        mustSupport: false
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/group-measure|5.0.0-snapshot1'}
        isSummary: false
        index: 41
      definitionExpression: {isModifier: false, short: 'What code or expression defines members?', type: Expression, mustSupport: false, choiceOf: definition, isSummary: true, index: 31}
      method:
        isModifier: false
        short: Method used for describing characteristic
        type: CodeableConcept
        mustSupport: false
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/characteristic-method'}
        isSummary: false
        index: 32
      definitionCanonical: {isModifier: false, short: 'What code or expression defines members?', type: canonical, mustSupport: false, choiceOf: definition, isSummary: true, index: 29}
      definitionReference:
        isModifier: false
        short: What code or expression defines members?
        index: 28
        refers: ['http://hl7.org/fhir/StructureDefinition/EvidenceVariable', 'http://hl7.org/fhir/StructureDefinition/Group']
        type: Reference
        mustSupport: false
        choiceOf: definition
        isSummary: true
      type:
        isModifier: false
        short: Expresses the type of characteristic
        type: CodeableConcept
        mustSupport: false
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/usage-context-type'}
        isSummary: false
        index: 25
      definitionCodeableConcept: {isModifier: false, short: 'What code or expression defines members?', type: CodeableConcept, mustSupport: false, choiceOf: definition, isSummary: true, index: 30}
      device:
        isModifier: false
        short: Device used for determining characteristic
        refers: ['http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/DeviceMetric']
        type: Reference
        mustSupport: false
        isSummary: false
        index: 33
      timeFromEvent:
        isModifier: false
        short: Observation time from study specified event
        type: BackboneElement
        mustSupport: false
        array: true
        isSummary: false
        index: 35
        elements:
          description: {isModifier: false, short: Human readable description, type: string, mustSupport: false, isSummary: false, index: 36}
          event:
            isModifier: false
            short: The event used as a base point (reference point) in time
            type: CodeableConcept
            mustSupport: false
            binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/evidence-variable-event'}
            isSummary: false
            index: 37
          quantity: {isModifier: false, short: Used to express the observation at a defined amount of time after the study start, type: Quantity, mustSupport: false, isSummary: false, index: 38}
          range: {isModifier: false, short: Used to express the observation within a period after the study start, type: Range, mustSupport: false, isSummary: false, index: 39}
          note: {isModifier: false, short: Used for footnotes or explanatory notes, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 40}
    required: [definitionReference, definitionCodeableConcept, definition, definitionCanonical, definitionExpression]
    isSummary: true
  handling:
    isModifier: false
    short: continuous | dichotomous | ordinal | polychotomous
    type: code
    mustSupport: false
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/variable-handling|5.0.0-snapshot1'}
    isSummary: false
    index: 42
  status:
    isModifier: true
    short: draft | active | retired | unknown
    index: 7
    type: code
    mustSupport: false
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/publication-status|5.0.0-snapshot1'}
    isModifierReason: This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
    isSummary: true
  subtitle: {isModifier: false, short: Subordinate title of the EvidenceVariable, type: string, mustSupport: false, isSummary: false, index: 6}
  url: {isModifier: false, short: 'Canonical identifier for this evidence variable, represented as a URI (globally unique)', type: uri, mustSupport: false, isSummary: true, index: 0}
  identifier: {isModifier: false, short: Additional identifier for the evidence variable, type: Identifier, mustSupport: false, array: true, isSummary: true, index: 1}
  editor: {isModifier: false, short: Who edited the content, type: ContactDetail, mustSupport: false, array: true, isSummary: false, index: 15}
  reviewer: {isModifier: false, short: Who reviewed the content, type: ContactDetail, mustSupport: false, array: true, isSummary: false, index: 16}
  shortTitle: {isModifier: false, short: Title for use in informal contexts, type: string, mustSupport: false, isSummary: true, index: 5}
  version: {isModifier: false, short: Business version of the evidence variable, type: string, mustSupport: false, isSummary: true, index: 2}
  relatedArtifact: {isModifier: false, short: 'Additional documentation, citations, etc.', type: RelatedArtifact, mustSupport: false, array: true, isSummary: false, index: 18}
  actual: {isModifier: false, short: Actual or conceptual, type: boolean, mustSupport: false, isSummary: false, index: 19}
  contact: {isModifier: false, short: Contact details for the publisher, type: ContactDetail, mustSupport: false, array: true, isSummary: true, index: 13}
package_version: 5.0.0-snapshot1
class: resource
kind: resource
url: http://hl7.org/fhir/StructureDefinition/EvidenceVariable
base: http://hl7.org/fhir/StructureDefinition/MetadataResource
version: 5.0.0-snapshot1
required: [status]