Hello, I'm using the following code to perform a survival analysis, just looking for the general survival information for my cases: proc lifetest data = combine2;
time days_survived*censor(1);
run; Here, I have 42 cases, 6 with missing censor information (and thus were deleted), and of the remaining 36, 63.89% were censored. This seems to be done appropriately given the output box I received from proc lifetest below: It is my understanding that when over 50% of your cases are censored the median survival time does not exist. Using the proc lifetest code above, in which over 50% of my cases are censored, I received the following output: Here is the other survival output in case it helps: How is it that Proc Lifetest can compute a median survival time when more than 50% of the cases are censored? I'm using SAS 9.4. I'd appreciate your help!
... View more