To chemo or not to chemo

I think it is interesting as with both of my diagnosis there was never any talk of percentages, so my treatment plan was based just on the pathology Stage and Grade particularly. Thing too was the Oncologist said realistically he couldnt predict if I did chemo it would or wouldnt come back based on any information. I remember thinking its all a gamble, doesn't make it easy, I certainly wouldnt have done it if I didnt have to. Thing is I'll never know I guess I look at it now and go well if it did I did absolutely all I could.