{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"22.1","upperLimit":"45.5","value":"33.6"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"63"}],"units":"Participants"}],"description":"The Kaplan-Meier estimate of EFS is calculated from enrollment date to first occurrence of disease progression, disease recurrence, second malignant neoplasm, or death from any cause.","dispersionType":"95% Confidence Interval","groups":[{"description":"Patients with subtotal resection after induction chemotherapy (see Arm I) and second surgery are non-randomly assigned to Arm II treatment.","id":"OG000","title":"Arm IV: Nonrandomly Assigned to Arm II Treatment"}],"paramType":"NUMBER","populationDescription":"Eligible participants in Arm IV (intent-to-treat)","reportingStatus":"POSTED","timeFrame":"Up to 10 years after enrollment. 5-year estimates of EFS are presented.","title":"EFS of Children With Incompletely Resected Ependymoma Who Are Unable to Achieve a Complete Response (CR) by Post-operative Induction Chemotherapy or by Second Surgery and Who Are Non-randomly Assigned to Receive Maintenance Chemotherapy","type":"OTHER_PRE_SPECIFIED","unitOfMeasure":"percentage of participants"}