An Arizona Mayo Clinic study has found that nearly 60 percent of women who are diagnosed with breast cancer in the United States will have the disease before they die, according to the Mayo report.
The Mayo Clinic reported Thursday that the percentage of women with the disease was higher than in previous studies of the disease.
The previous study, conducted in 2011, showed that roughly 44 percent of breast cancer patients in the U.S. had the disease by the time they died.
The new study, published in The Journal of the American Medical Association, found that more than 75 percent of all breast cancer cases in the state are not detected until at least two years after diagnosis.
The study also found that women who received chemotherapy and radiation were more likely to have breast cancer.
The study found that about 60 percent to 70 percent of the women who had radiation and chemotherapy did not have cancer when they died, the Mayo researchers said.
While the new study found a strong association between the disease and the death of breast tissue, it also found a small but statistically significant link between the breast cancer diagnosis and the type of chemotherapy the patient received.
This link is the only statistically significant finding in the study, according a Mayo spokesperson.
“The study shows that patients who were diagnosed with the most severe forms of cancer are more likely than those with milder types of cancer to die from the disease,” the spokesperson said.
“We need to do more research to understand the mechanisms underlying this association.”
While the study does not say why this association exists, the association could be due to certain factors such as the fact that women with more advanced cancers have more favorable outcomes, the spokesperson added.
The findings were also the first to identify an association between breast cancer and breast-cancer survivors.
The Mayo study showed that women whose breast cancer had metastasized, such as breast cancer from a previous tumor, were more than three times more likely compared with women who did not.
The new study also focused on factors that may explain the association between chemotherapy and survival.
The researchers found that the patients who received the most aggressive chemotherapy treatments were more at risk of having breast cancer as they aged, even though they did not show the same progression as women who got less aggressive treatment.
The researchers also noted that women were more affected by chemotherapy treatments in the later stages of their lives than those who were younger, and that women older than 65 were more vulnerable to the adverse effects of chemotherapy treatments.
The most common treatment for breast cancer is chemotherapy, but many patients are given other forms of therapy, including radiotherapy and radiation.
The cancer is spread by a variety of ways, including through direct contact with blood or other bodily fluids.