{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"90.4","upperLimit":"93.3","value":"91.8"},{"groupId":"OG001","lowerLimit":"88.8","upperLimit":"91.8","value":"90.3"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"1975"},{"groupId":"OG001","value":"2011"}],"units":"Participants"}],"description":"Measured at the time from randomization to any death to determine the percentage of patients alive 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","populationDescription":"Data missing or unknown for some patients","reportingStatus":"POSTED","timeFrame":"8 years","title":"Overall Survival","type":"PRIMARY","unitOfMeasure":"percentage of patients alive at 8 years"}