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For survival analysis, are estimates of cumulative survival and exact confidence intervals given, or only the exact test results?

April 26, 2017analysis confidence cumulative estimates exact given intervals results survival Test

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For survival analysis, are estimates of cumulative survival and exact confidence intervals given, or only the exact test results?

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A. To the best of our knowledge exact confidence intervals for the hazard ratio in survival analysis cannot be obtained as there is no coherent conditioning argument that will eliminate the censoring distribution under the alternative hypothesis.