Tamoxifen reduces cancer by 40%?

moskitoe

My mother age 72, was recently diagnosed with stage 0 DICU and will have a lumpectomy followed by radiation. She is hesitant to take the 5 year tamoxifen treatment suggested to her by her doctors. This community has been great and you shared with me encouraging data that with lumpectomy and radiation, a chance of recurrence goes down to below 15%. However, her oncologist shared data that tamoxifen reduces the cancer risk by 40%. Where is that data from? Does anyone know where this number is from? I'm having trouble understanding this data and how it fits with the first set of data reducing the risk to less than 15% with lumpectomy and radiation. Thank you.

BarredOwl

This appears to be a duplicate post. Please consolidate replies in this thread:

https://community.breastcancer.org/forum/68/topics/851780?page=1#post_4881279