{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"0","upperLimit":"0","value":"0"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"55"}],"units":"Participants"}],"description":"Regional recurrence is defined as hilar, mediastinal, and supraclavicular nodal failure.Time to regional recurrence is defined as time from start of treatment to the date of first regional recurrence, last known follow-up (censored), or death without regional recurrence (competing risk). Rates are estimated using the cumulative incidence method.","dispersionType":"95% Confidence Interval","groups":[{"description":"20 Gy per fraction for 3 fractions over 1.5-2 weeks, for a total of 60 Gy","id":"OG000","title":"Stereotactic Body Radiation Therapy (SBRT)"}],"paramType":"NUMBER","populationDescription":"Eligible patients","reportingStatus":"POSTED","timeFrame":"From the start of treatment to 2 years","title":"Rate of Regional Recurrence at 2 Years","type":"SECONDARY","unitOfMeasure":"percentage of participants"}