description: The EvidenceVariable resource describes a \"PICO\" element that knowledge (evidence, assertion, recommendation) is about.
package_name: hl7.fhir.r4.core
derivation: specialization
name: EvidenceVariable
type: EvidenceVariable
elements:
  description: {short: Natural language description of the evidence variable, type: markdown, isSummary: true, index: 11}
  date: {short: Date last changed, type: dateTime, isSummary: true, index: 8}
  endorser: {type: ContactDetail, short: Who endorsed the content, array: true, index: 23}
  publisher: {short: Name of the publisher (organization or individual), type: string, isSummary: true, index: 9}
  approvalDate: {short: When the evidence variable was approved by publisher, type: date, index: 16}
  jurisdiction:
    short: Intended jurisdiction for evidence variable (if applicable)
    type: CodeableConcept
    array: true
    binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/jurisdiction'}
    isSummary: true
    index: 14
  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: 13}
  copyright: {short: Use and/or publishing restrictions, type: markdown, index: 15}
  type:
    short: dichotomous | continuous | descriptive
    type: code
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/variable-type|4.0.1'}
    isSummary: true
    index: 25
  topic:
    short: The category of the EvidenceVariable, such as Education, Treatment, Assessment, etc.
    type: CodeableConcept
    array: true
    binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/definition-topic'}
    index: 19
  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: 12}
  author: {type: ContactDetail, short: Who authored the content, array: true, index: 20}
  characteristic:
    min: 1
    short: What defines the members of the evidence element
    index: 26
    type: BackboneElement
    array: true
    elements:
      description: {type: string, short: Natural language description of the characteristic, index: 27}
      definition:
        short: What code or expression defines members?
        choices: [definitionReference, definitionCanonical, definitionCodeableConcept, definitionExpression, definitionDataRequirement, definitionTriggerDefinition]
        isSummary: true
        index: 29
      exclude: {type: boolean, short: Whether the characteristic includes or excludes members, meaningWhenMissing: 'False', index: 37}
      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|4.0.1'}
        index: 45
      definitionExpression: {short: 'What code or expression defines members?', type: Expression, choiceOf: definition, isSummary: true, index: 33}
      timeFromStart: {type: Duration, short: Observation time from study start, index: 44}
      participantEffectiveDuration: {type: Duration, short: What time period do participants cover, choiceOf: participantEffective, index: 42}
      definitionDataRequirement: {short: 'What code or expression defines members?', type: DataRequirement, choiceOf: definition, isSummary: true, index: 34}
      definitionTriggerDefinition: {short: 'What code or expression defines members?', type: TriggerDefinition, choiceOf: definition, isSummary: true, index: 35}
      definitionCanonical: {short: 'What code or expression defines members?', type: canonical, choiceOf: definition, isSummary: true, index: 31}
      definitionReference:
        short: What code or expression defines members?
        refers: ['http://hl7.org/fhir/StructureDefinition/Group']
        type: Reference
        choiceOf: definition
        isSummary: true
        index: 30
      participantEffectiveTiming: {type: Timing, short: What time period do participants cover, choiceOf: participantEffective, index: 43}
      participantEffectiveDateTime: {type: dateTime, short: What time period do participants cover, choiceOf: participantEffective, index: 40}
      participantEffectivePeriod: {type: Period, short: What time period do participants cover, choiceOf: participantEffective, index: 41}
      definitionCodeableConcept: {short: 'What code or expression defines members?', type: CodeableConcept, choiceOf: definition, isSummary: true, index: 32}
      participantEffective:
        short: What time period do participants cover
        choices: [participantEffectiveDateTime, participantEffectivePeriod, participantEffectiveDuration, participantEffectiveTiming]
        index: 39
      usageContext: {type: UsageContext, short: 'What code/value pairs define members?', array: true, index: 36}
    required: [definitionTriggerDefinition, definitionReference, definitionDataRequirement, definitionCodeableConcept, definition, definitionCanonical, definitionExpression]
    isSummary: true
  status:
    isModifier: true
    short: draft | active | retired | unknown
    type: code
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/publication-status|4.0.1'}
    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}
  lastReviewDate: {short: When the evidence variable was last reviewed, type: date, index: 17}
  editor: {type: ContactDetail, short: Who edited the content, array: true, index: 21}
  reviewer: {type: ContactDetail, short: Who reviewed the content, array: true, index: 22}
  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: 24}
  contact: {short: Contact details for the publisher, type: ContactDetail, array: true, isSummary: true, index: 10}
  effectivePeriod: {short: When the evidence variable is expected to be used, type: Period, isSummary: true, index: 18}
package_version: 4.0.1
class: resource
kind: resource
url: http://hl7.org/fhir/StructureDefinition/EvidenceVariable
base: http://hl7.org/fhir/StructureDefinition/DomainResource
version: 4.0.1
required: [status, characteristic]