{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"80.5","upperLimit":"84.4","value":"82.4"},{"groupId":"OG001","lowerLimit":"79.6","upperLimit":"83.4","value":"81.5"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"1975"},{"groupId":"OG001","value":"2011"}],"units":"Participants"}],"description":"Measured at time from randomization to recurrence, second primary, or death to determine the percentage of patients disease free at 8 years.","dispersionType":"95% Confidence Interval","groups":[{"description":"Sentinel node resection immediately followed by axillary dissection\n\nconventional surgery: Sentinel node resection immediately followed by axillary dissection.","id":"OG000","title":"Arm I:Sentinel Node Resection+Conventional Axillary Dissection"},{"description":"Sentinel node resection followed by node examination then axillary dissection if positive sentinel node.\n\nSentinel node resection followed by node examination: Sentinel node resection followed by node examination then axillary dissection if positive sentinel node. No axillary dissection for negative sentinel node.","id":"OG001","title":"Arm II: Sentinel Node Resection Followed by Node Examination"}],"paramType":"NUMBER","reportingStatus":"POSTED","timeFrame":"8 years","title":"Disease-free Survival as Measured by Breast Cancer Recurrence, Any Second Primary Cancer, and Death From Any Cause in Patients Without a Prior Event.","type":"PRIMARY","unitOfMeasure":"percentage pts disease free at 8 years"}