A Pain Burden Index (PBI) at 6 months after surgery in 3 surgical categories (breast conservation, mastectomy, mastectomy with reconstruction) (F=0.173, p=0.841). B PBI at 6 months according to axillary surgery (no axillary surgery, sentinel lymph node biopsy, axillary lymph node dissection) to Pain Burden Index at 6 months (F= 9.302, p<0.001). C PBI at 6 months according to cancer stage or indication for surgery (F=3.168, p=0.009).