{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"4.2","value":"0"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"72"}],"units":"Participants"}],"description":"* Recurrence in a PN0 neck that was not treated is the critical endpoint in this study.\n* Recurrence is defined as the return of cancer after treatment\n* Recurrence is determined by a CT, PET/CT, or MRI and it will be fused with the original treatment planning CT scan. This will allow correlation between the original dose distribution and contours with any recurrent disease.","dispersionType":"95% Confidence Interval","groups":[{"description":"CTV1 = 66 Gy in 33 fractions\n\nCTV2 = 60 Gy in 33 fractions\n\nCTV3 = 56 Gy in 33 fractions\n\nCTV3 Proto = 56 Gy in 33 fractions","id":"OG000","title":"Arm 1: IMRT"}],"paramType":"NUMBER","reportingStatus":"POSTED","timeFrame":"12 months of follow-up","title":"Number of Participants With a Recurrence in the Unirradiated Neck(s)","type":"PRIMARY","unitOfMeasure":"participants"}