<status value="draft"/> <description value="Modified Rankin Scale score 0-2 at 90 days after treatment"/> <actual value="true"/> <characteristic> <description value="mRS 0-2 at 90 days"/> <definitionExpression> <description value="mRS 0-2"/> <language value="text/cql"/> <expression value="["Observation": code in "75859-9|LOINC"] mRS where mRS.value between 0 and 2"/> </definitionExpression> <timeFromEvent> <eventCodeableConcept> <coding> <system value="http://hl7.org/fhir/evidence-variable-event"/> <code value="study-start"/> <display value="Study Start"/> </coding> </eventCodeableConcept> <quantity> <value value="90"/> <unit value="day"/> <system value="http://unitsofmeasure.org"/> <code value="d"/> </quantity> </timeFromEvent> </characteristic> <handling value="dichotomous"/> </EvidenceVariable>

"mRS 0-2 at 90 days" is an outcome, defined by a CQL expression, used in expressing what an Evidence is about.