Verifiable results

I know each case and person is different, but I would like to see if there is:

Recurrance and length of survivorship amoun those who:

- had lumpectomy/radiation

-lumpectomy/radiation/oral meds

-mx (single/double)/chemo

-mx/chemo/oral meds

-mx and nothing else

I am presently doing AC &T chemo even though I was borderline oncotype just to be sure. It has been no picnic, but it is just about behind me. I recently had a friend who's mother had a double mx 20 years ago and never followed up with any further treatment. Her cancer is back and she opted to not do radiation or chemo since she is 75 now. Her daughter is a friend and is very upset while I think the mother 's choice is hers to make and one that I may make in the same situation. I was just wondering if there was any verifiable results and studies on those taking treatments (chemo with oral vs. oral alone vs chemo and nothing)