This summary table contains detailed information about research studies. Summary tables offer an informative look at the science behind many breast cancer guidelines and recommendations. However, they should be viewed with some caution. In order to read and interpret research tables successfully, it is important to understand some key concepts. Learn how to read a research table.
Introduction: Tumor size is related to breast cancer recurrence and survival.
Data clearly show as tumor size increases, breast cancer survival decreases .
Study selection criteria: Most recent SEER data on tumor size and breast cancer survival by lymph node status (whether or not the cancer has spread to the lymph nodes in the underarm area).
Table note: Relative survival compares survival rates (over a certain period of time) for women with breast cancer versus women in the general population.
For example, data from the table below show:
Relative survival rates are averages though and vary depending on each person’s diagnosis and treatment.
Surveillance, Epidemiology, and End Results (SEER) Program FindingsAmong 21,465 women diagnosed with non-metastatic breast cancer between 1995-1999
5-year relative survival
Smaller than 1 cm
Larger than 5 cm
cm = centimeter
1. Elkin EB, Hudis C, Begg CB, Schrag D. The effect of changes in tumor size on breast carcinoma survival in the U.S.: 1975-1999. Cancer. 104(6):1149-57, 2005.
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