I'm trying to plot a survival curve and I also need median survival time and 95%CI.

I specifically need the 95% CI which is not easy to calculate for a median.

So that's why i'm using spss, though i don't have experience with it.

(I do have some experience with statistica, it plots the survival curve but it doesn't calulate the median 95% CI, so that why I'm using SPSS 17.0 for the first time.)

When use kaplan-meier, the resulting median survival time doesn't correspond with the median when calculated with excel???

Should'nt they be the same?

Tnx