GroupAssignment: PARACHUTE Trial jumping from aircraft with parachute vs. empty backpack

{
  "resourceType" : "EvidenceVariable",
  "id" : "example-group-assignment",
  "meta" : {
    "versionId" : "1",
    "lastUpdated" : "2024-12-17T19:40:19.291Z",
    "profile" : ["http://hl7.org/fhir/uv/ebm/StructureDefinition/group-assignment"]
  },
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  }],
  "url" : "https://fevir.net/resources/EvidenceVariable/297490",
  "identifier" : [{
    "type" : {
      "text" : "FEvIR Object Identifier"
    },
    "system" : "urn:ietf:rfc:3986",
    "value" : "https://fevir.net/FOI/297490",
    "assigner" : {
      "display" : "Computable Publishing LLC"
    }
  }],
  "title" : "GroupAssignment: Jumping from aircraft with parachute vs. Jumping from aircraft with empty backpack",
  "status" : "active",
  "author" : [{
    "name" : "Joanne Dehnbostel"
  }],
  "publisher" : "HL7 International / Clinical Decision Support",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/dss"
    }]
  }],
  "description" : "This EvidenceVariable Resource (GroupAssignment Profile) describes a 2-group study (so handling='dichotomous') and lists the 2 study arms in category.name elements. Because the definition of this EvidenceVariable Resource is fully expressed in the handling and category elements, the defintion.concept element uses a CodeableConcept for 'Defined in handling and category elements'.",
  "useContext" : [{
    "code" : {
      "system" : "https://fevir.net/resources/CodeSystem/179423",
      "code" : "evidence-communication",
      "display" : "Evidence Communication"
    },
    "valueCodeableConcept" : {
      "coding" : [{
        "system" : "https://fevir.net/resources/CodeSystem/179423",
        "code" : "GroupAssignment",
        "display" : "GroupAssignment"
      }]
    }
  }],
  "copyright" : "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "definition" : {
    "concept" : {
      "coding" : [{
        "system" : "https://fevir.net/resources/CodeSystem/179423",
        "code" : "defined-in-handling-and-category",
        "display" : "Defined in handling and category elements"
      }]
    }
  },
  "handling" : "dichotomous",
  "category" : [{
    "name" : "Jumping from aircraft with parachute",
    "valueReference" : {
      "reference" : "Group/297486",
      "type" : "Group",
      "display" : "Jumping from aircraft with parachute"
    }
  },
  {
    "name" : "Jumping from aircraft with empty backpack",
    "valueReference" : {
      "reference" : "Group/297488",
      "type" : "Group",
      "display" : "Jumping from aircraft with empty backpack"
    }
  }]
}