description: Profile of Evidence for Evidence Based Medicine IG. The ComparativeEvidence Profile is used for evidence with a measured variable that is considered the outcome of an exposure or intervention, and an exposure variable with two or more categories that are being compared.
package_name: hl7.fhir.uv.ebm
derivation: constraint
name: ComparativeEvidence
type: Evidence
elements:
  extension:
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: null
      slices:
        citeAs:
          match: {url: null}
          schema: {type: Extension, url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/cite-as', index: 1}
          min: 0
          max: 1
        relatesTo:
          match: {url: null}
          schema: {type: Extension, url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/relates-to', index: 2}
          min: 0
        RelatesToWithQuotation:
          match: {url: null}
          schema: {type: Extension, url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/relates-to-with-quotation', index: 3}
          min: 0
  variableDefinition:
    array: true
    min: 3
    index: 4
    slicing:
      rules: open
      discriminator:
      - {path: variableRole, type: value}
      min: 3
      slices:
        population:
          match: {variableRole: population}
          schema:
            array: true
            min: 1
            _required: true
            index: 5
            elements:
              variableRole:
                pattern: {type: Code, value: population}
                index: 6
              observed:
                type: Reference
                refers: ['http://hl7.org/fhir/uv/ebm/StructureDefinition/comparator-group', 'http://hl7.org/fhir/uv/ebm/StructureDefinition/exposure-group', 'http://hl7.org/fhir/uv/ebm/StructureDefinition/metaanalysis-study-group', 'http://hl7.org/fhir/uv/ebm/StructureDefinition/study-group']
                index: 7
              intended:
                type: Reference
                refers: ['http://hl7.org/fhir/StructureDefinition/Group']
                index: 8
        exposure:
          match: {variableRole: exposure}
          schema:
            _required: true
            index: 9
            elements:
              variableRole:
                pattern: {type: Code, value: exposure}
                index: 10
              comparatorCategory: {index: 11}
              observed:
                type: Reference
                refers: ['http://hl7.org/fhir/uv/ebm/StructureDefinition/group-assignment']
                index: 12
              intended:
                type: Reference
                refers: ['http://hl7.org/fhir/uv/ebm/StructureDefinition/variable-definition']
                index: 13
            required: [comparatorCategory]
        outcome:
          match: {variableRole: outcome}
          schema:
            mustSupport: true
            array: true
            min: 1
            _required: true
            index: 14
            elements:
              variableRole:
                pattern: {type: Code, value: outcome}
                index: 15
              comparatorCategory: {index: 16}
              observed:
                type: Reference
                refers: ['http://hl7.org/fhir/uv/ebm/StructureDefinition/variable-definition']
                index: 17
              intended:
                type: Reference
                refers: ['http://hl7.org/fhir/StructureDefinition/EvidenceVariable']
                index: 18
package_version: 1.0.0-ballot2
extensions:
  citeAs: {url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/cite-as', min: 0, max: 1, type: Extension, index: 1}
  relatesTo: {url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/relates-to', min: 0, type: Extension, index: 2}
  RelatesToWithQuotation: {url: 'http://hl7.org/fhir/uv/ebm/StructureDefinition/relates-to-with-quotation', min: 0, type: Extension, index: 3}
class: profile
kind: resource
url: http://hl7.org/fhir/uv/ebm/StructureDefinition/comparative-evidence
base: http://hl7.org/fhir/StructureDefinition/Evidence
version: 1.0.0-ballot2