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rakhi_baj
rakhi_baj
Level I

Calculating Sample Size for survival analysis

Apr 26, 2017 11:04 AM (4905 views)

Hi,

I'm trying to calculate a sample size for survival analysis in Oncology. If I assume a constant hazard ratio and I have an estimate of overall survival (OS) and if I'm assuming that I need, say 80% power, how do I calcualate sample size in SAS JMP? 

 

Any ideas?

 

Thanks,

Rakhi 

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DonMcCormack
Staff DonMcCormack
Staff

Re: Calculating Sample Size for survival analysis

Apr 27, 2017 10:55 AM (4878 views)  |  Posted in reply to message from rakhi_baj 04-26-2017

Rakhi,

Can you provide a few more details? Are you comparing treatments? How many? Are their other factors that you're comparing or are you stratifying your subjects?  

Thanks, Don

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