{"analyses":[{"ciLowerLimit":"0.81","ciNumSides":"TWO_SIDED","ciPctValue":"95","ciUpperLimit":"1.20","groupIds":["OG000","OG001"],"nonInferiorityType":"SUPERIORITY","pValue":"0.42","pValueComment":"One-sided significance level = 0.05","paramType":"Hazard Ratio (HR)","paramValue":"0.99","statisticalMethod":"Log Rank"}],"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"46.3","upperLimit":"56.6","value":"51.4"},{"groupId":"OG001","lowerLimit":"48.2","upperLimit":"58.6","value":"53.4"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"361"},{"groupId":"OG001","value":"360"}],"units":"Participants"}],"description":"Disease-free survival time is defined as time from randomization to persistent disease in the primary tumor or regional nodes (considered an event at day 1), relapse/progression in either of those sites (considered an event at the time of relapse/progression), distant metastasis (event), second primary tumor (event), death (event), or last follow-up (censored). Progression is defined as an estimated increase in the size of the tumor of greater than 25% or appearance of new areas of malignant disease. The full distribution is the outcome of interest, and the protocol specifies that the distributions of failure times be compared between the arms, which is reported in the statistical analysis results. Three-year estimates are provided as a summary of the distributions. Analysis was planned to occur after 309 deaths had been reported.","dispersionType":"95% Confidence Interval","groups":[{"description":"Standard fractionation radiation therapy with concurrent cisplatin followed by conventional surgery for select patients.","id":"OG000","title":"Standard Fractionation RT + Cisplatin"},{"description":"Accelerated fractionation radiation therapy by concomitant boost with concurrent cisplatin followed by conventional surgery for select patients.","id":"OG001","title":"Accelerated Fractionation RT + Cisplatin"}],"paramType":"NUMBER","populationDescription":"Eligible patients who did not withdraw consent","reportingStatus":"POSTED","timeFrame":"From randomization to last follow-up. Follow-up schedule from end of treatment: 6-8 weeks, every 3 mo. for 2 yr., then every 6 mo. for 3 yr., then yearly. Maximum follow-up at time of analysis was 6.5 years. Three-year rates are reported here.","title":"Disease-free Survival (Percentage of Participants Alive Without Disease)","type":"SECONDARY","unitOfMeasure":"percentage of participants"}