Dead or functionally dependent at 90 days

{
  "resourceType" : "EvidenceVariable",
  "id" : "example-dead-or-dependent-90day",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n      <p>\n        &quot;Dead or functionally dependent at 90 days&quot; is an outcome used in expressing what an Evidence is about.\n      </p>\n\t</div>"
  },
  "title" : "Dead or functionally dependent at 90 days",
  "status" : "draft",
  "actual" : false,
  "characteristic" : [{
    "description" : "Dead or functionally dependent at 90 days",
    "definitionByCombination" : {
      "code" : "any-of",
      "characteristic" : [{
        "description" : "functionally dependent at 90 days",
        "definitionCodeableConcept" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "718705001",
            "display" : "Functionally dependent (finding)"
          }]
        },
        "timeFromEvent" : [{
          "eventCodeableConcept" : {
            "coding" : [{
              "system" : "http://hl7.org/fhir/evidence-variable-event",
              "code" : "study-start",
              "display" : "Study Start"
            }]
          },
          "quantity" : {
            "value" : 90,
            "unit" : "day",
            "system" : "http://unitsofmeasure.org",
            "code" : "d"
          }
        }]
      },
      {
        "description" : "dead at 90 days",
        "definitionCodeableConcept" : {
          "coding" : [{
            "system" : "http://snomed.info/sct",
            "code" : "419099009",
            "display" : "Dead (finding)"
          }]
        },
        "timeFromEvent" : [{
          "quantity" : {
            "value" : 90,
            "unit" : "day",
            "system" : "http://unitsofmeasure.org",
            "code" : "d"
          }
        }]
      }]
    }
  }],
  "handling" : "dichotomous"
}