Hello all, Usually for Kaplan-Meier estimates, the client is interested of having the 25%, 50% and 75% quartiles for survival estimates. Now the client would like to have also the 10% percentile, since we don’t have enough events. In proc lifetest, we can easily retrieve the 25%, 50% and 75% quartiles with the associated Confidence Interval (CI). Does anyone know how to get the CI for another percentile, let’s say 10%? From outsurv dataset, we can easily pull out the 10 th percentile but not the associated CI to that value. I do not want the CI for the curve, but the CI associated to the 10th percentile value. OBS DUR _CENSOR_ SURVIVAL SDF_LCL SDF_UCL 1 0 . 1.000000 1.00000 1.00000 2 8 0 0.920000 0.71639 0.97937 3 13 0 0.880000 0.67256 0.95964 4 18 0 0.840000 0.62806 0.93673 5 23 0 0.800000 0.58445 0.91146 6 52 0 0.760000 0.54205 0.88428 7 63 0 0.680000 0.46093 0.82527 8 70 0 0.640000 0.42215 0.79378 So here's the 10th percentile is DUR=13 (using loglog). So how do we get the CI associated to DUR=13? Usually proc lifestest gives the 25%, 50% and 75% percentile automatically. Thanks for your help
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