I am wondering how you can calculate a hazard ratio from survivals percentages with SAS? Is there a procedure in SAS to figure this out?

I have percentages of subject by groups that have survived to certain years in my study, and I am trying to get a hazard ratio so I may calculate or predict the number of days a subject has remaining in the study.

Any help would be appreciated. Thanks.

Brad

Here is an example of my data

Group Survival% Year Number of subjects surviving 1 19.6 4 10 1 10.6 5 5 1 5.0 6 2 1 2.1 7 1 2 51.1 4 48 2 32.9 5 31 2 18.9 6 17 2 9.6 7 9