Obesity increases the risk of mortality in breast cancer patients, according to a new study.
Research found that obesity is significantly linked to breast cancer deaths, and this effect was especially strong in overweight or obese women with a history of oestrogen receptor-positive breast cancer, but not those with the oestrogen receptor-negative form of the condition.
The research, to be presented at The Endocrine Society's 93rd Annual Meeting in Boston, revealed that women who were obese at the beginning of the study had a 69 per cent higher risk of death due to breast cancer than those who were not obese.
Lead author, Christina Dieli-Conwright, said: "What we know now is that there is a strong link between dying from breast cancer and being obese, and it's not just your BMI near the time you're diagnosed that's important."
This follows Washington University School of Medicine research which revealed that an oestrogen-only hormone therapy in women who have undergone a hysterectomy could increase the risk of breast cancer.
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