{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"39.8","upperLimit":"65.8","value":"53.7"},{"groupId":"OG001","lowerLimit":"48.0","upperLimit":"72.3","value":"61.4"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"61"},{"groupId":"OG001","value":"64"}],"units":"Participants"}],"description":"Proportion of patients event free at 4 years following enrollment. See EFS outcome measure description.","dispersionType":"95% Confidence Interval","groups":[{"description":"Sodium thiosulfate treatment.","id":"OG000","title":"STS Arm (Sodium Thiosulfate Treatment)"},{"description":"No sodium thiosulfate treatment.","id":"OG001","title":"Observation Arm"}],"paramType":"NUMBER","populationDescription":"61 eligible patients were enrolled on the STS arm; 64 eligible patients were enrolled on the observation arm.","reportingStatus":"POSTED","timeFrame":"4 years after enrollment","title":"Event-Free Survival (EFS)","type":"SECONDARY","unitOfMeasure":"Percentage probability"}