<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.