Death or Major Traumatic Injury on Impact comparing intervention vs. comparator

{
  "resourceType" : "Evidence",
  "id" : "example-death-or-major-injury-reduce-parachute-vs-empty-backpack",
  "meta" : {
    "versionId" : "6",
    "lastUpdated" : "2025-02-17T13:56:56.719Z",
    "profile" : ["http://hl7.org/fhir/uv/ebm/StructureDefinition/comparative-evidence",
    "http://hl7.org/fhir/uv/ebm/StructureDefinition/single-study-evidence"]
  },
  "extension" : [{
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  "identifier" : [{
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    "system" : "urn:ietf:rfc:3986",
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    "assigner" : {
      "display" : "Computable Publishing LLC"
    }
  }],
  "title" : "Death or Major Traumatic Injury on Impact comparing intervention vs. comparator",
  "status" : "active",
  "author" : [{
    "name" : "Joanne Dehnbostel"
  }],
  "publisher" : "HL7 International / Clinical Decision Support",
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    }]
  }],
  "copyright" : "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "relatedArtifact" : [{
    "type" : "part-of",
    "resourceReference" : {
      "reference" : "Composition/312172",
      "type" : "Composition",
      "display" : "PARACHUTE Trial Results"
    }
  },
  {
    "type" : "cite-as",
    "citation" : "Death or Major Traumatic Injury on Impact comparing intervention vs. comparator [Database Entry: FHIR Evidence Resource]. Contributors: Joanne Dehnbostel [Authors/Creators]. In: Fast Evidence Interoperability Resources (FEvIR) Platform, FOI 318273. Revised 2025-02-17. Available at: https://fevir.net/resources/Evidence/318273. Computable resource at: https://fevir.net/resources/Evidence/318273#json."
  }],
  "description" : "Example Evidence Resource for EBMonFHIR IG using SingleStudyEvidence and ComparativeEvidence Profiles",
  "variableDefinition" : [{
    "variableRole" : "population",
    "observed" : {
      "reference" : "Group/292955",
      "type" : "Group",
      "display" : "PARACHUTE Trial Participants"
    }
  },
  {
    "variableRole" : "exposure",
    "comparatorCategory" : "Parachute trial participants assigned an empty backpack",
    "observed" : {
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      "type" : "EvidenceVariable",
      "display" : "GroupAssignment: Jumping from aircraft with parachute vs. Jumping from aircraft with empty backpack"
    }
  },
  {
    "variableRole" : "outcome",
    "observed" : {
      "reference" : "EvidenceVariable/297743",
      "type" : "EvidenceVariable",
      "display" : "Death or Major Traumatic Injury on Impact"
    }
  }],
  "synthesisType" : [{
    "coding" : [{
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      "code" : "NotApplicable",
      "display" : "not applicable"
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  }],
  "studyDesign" : [{
    "coding" : [{
      "system" : "https://fevir.net/sevco",
      "code" : "SEVCO:01003",
      "display" : "randomized assignment"
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  }],
  "statistic" : [{
    "statisticType" : {
      "coding" : [{
        "system" : "https://fevir.net/sevco",
        "code" : "STATO:0000614",
        "display" : "absolute difference"
      }]
    },
    "quantity" : {
      "value" : 0
    },
    "sampleSize" : {
      "knownDataCount" : 23
    },
    "attributeEstimate" : [{
      "type" : {
        "coding" : [{
          "system" : "https://fevir.net/sevco",
          "code" : "STATO:0000700",
          "display" : "p-value"
        }]
      },
      "quantity" : {
        "value" : 0.9,
        "comparator" : ">"
      }
    }]
  }]
}