@dada I was given statistics like that as well. What I learned is that the statistics do not relate specifically to the recurrence of breast cancer. These are the survival rates in general. In other words, these people may have died of a heart attack, car crash or some other horrible disease. I also spoke to 2 different oncologists about the geno testing. There are 3 different tests ranging in price from $2000 to $4000. And at the end of it, you may be $12,000 poorer with no definitive answer.
I was advised that I would get a 1, 2, or 3 result. 1 = chemo would greatly benefit, 3 = chemo no benefit and 2 = unclear whether chemo would benefit or not.
My bc was already in a bit of a grey area and it was highly likely the result would come back as 2 and leave me in no better position then when I started. I had some significant factors for chemo and some significant factors against chemo.
So I weighed up everything in my own mind and made my own decision. It was as informed and educated as it could be.
Whatever you decide, as one oncologist told me, you have to live with the consequences and not regret it 10 years down the track.