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Smoking is Found to be Associated with More Deaths among Breast Cancer Women
2010.11.10
Current smokers or ex-smokers diagnosed with breast cancer were found to be about 39% more likely to die as a result of the disease than women who had never smoked.

Research team of University of California, San Francisco had recruited 2,265 women afflicted with breast cancer between 1997 and 2000 for a health and smoking survey with an average 9-year follow up study. The researchers looked at whether smoking affects breast cancer-related death rates and death rates from other causes from 1,199 non smokers, 893 ex-smokers (ex-smokers was defined as having smoked at least 100 cigarettes in their lifetime before they quit) and 173 current smokers.

Dr Dejana Braithwaite, Chief Investigator of this research study reported that 164 of the women died from breast cancer, while 120 died from other causes during follow-up. Besides a 39% higher rate of dying from breast cancer, the current and ex-smoking participants with breast cancer were twice as likely to die from other causes.

“The association between breast cancer and smoking behaviors could not be explained definitively. The chemicals in tobacco smoke might have made breast cancer more aggressive and the linkage should be further investigated,” Dr Braithwaite said. “But the assumption is, the longer one has gone without smoking, the less the risk.”

Source : American Association for Cancer Research
 
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