If the cancer is located only in the breast, the 5-year relative survival rate of people with breast cancer is 99%. Sixty-two percent (62%) of cases are diagnosed at this stage. If the cancer has spread to the regional lymph nodes, the 5-year survival rate is 85%.
This would mean women with stage II breast cancer were, on average, 85 percent as likely as women in the general population to live 5 years beyond their diagnosis. Say, the 5-year relative survival for women with stage I breast cancer was 100 percent.
The survival rate for stage IIA breast cancer may be slightly higher than for stage IIB. However, all women with stage II breast cancer are considered to have a .