Breast Cancer Statistics

November 12, 2012

Breast Cancer Statistics

Breast cancer affects a great number of women all over the world and breast cancer statistics suggest that in between 10 and 20 percents of these cases, recurrent breast cancer will develop.


In the United States alone there are over 2.5 million breast cancer survivors. The American Cancer Society has recently revealed a number of breast cancer statistics including one that claims that in between 10 and 20 percent of these breast cancer survivors will develop recurrent forms. There are a number of factors that can affect these statistic and those who are more likely to develop recurrent breast cancer such as the individual’s age, stage of the original tumor, type of treatment they underwent for the original tumor and inherited susceptibility. Additionally certain lifestyle choices can play a role including obesity and excessive alcohol consumption.

Types of recurrent breast cancer

Breast cancer recurrence can be separated into types according to the location of the recurrent cancer compared to the location of the original tumor. In the case that the recurrent tumor is located in the same spot or very close to the spot of the original one it is referred to as a “true recurrence.” When it occurs in the same breast but a distinctly new site in the breast it is referred to as “elsewhere in the breast”. It is also possible for breast cancer recurrence to occur in the other breast and even in the other organs and when this occurs it can be called metastasis.

Recurrent breast cancer statistics

There is a book titled “DeVita, Hellman and Rosenberg’s Cancer: Principles and Practice of Oncology,” which contains many breast cancer statistics and covers how they have evolved over time. The recorded recurrent breast cancer statistics for the 1980 and 1990’s were between 8 and 9 percent within the 10 years that followed the diagnosis and treatment of the original tumor. Records taken from the early 21 century show that the rate of recurrence for the same time span is in between 2 and 7 percent. This improvement makes sense as breast cancer treatment has improved in this time. Further breast cancer statistics have revealed that women who undergo breast-conserving therapy as there method of treatment will find that recurrence is most likely to occur between the second and seventh year following treatment whereas those whose treatment consisted of a mastectomy are most likely to develop breast cancer recurrence between the third and fifth year following surgery. The overall recurrent breast cancer statistics are 11 percent of women will develop recurrence by year 5 and 20 percent by year 10.

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