The already lengthy list of reasons not to smoke keeps growing. A new study,
published in Cancer, a peer-reviewed journal of the American Cancer Society,
found a significant link between smoking habits and higher rates of breast
"The health hazards associated with smoking are numerous and well known. This
study adds to our knowledge in suggesting that with respect to breast cancer,
smoking may increase the risk of the most common molecular subtype of breast
cancer but not influence risk of one of the rarer, more aggressive subtypes,"
Dr. Christopher Li said.
Li was the lead researcher on the population-based study, which was undertaken
at the Fred Hutchinson Cancer Research Center in Seattle.
Researchers studied the cases of of several hundred women diagnosed with breast
cancer from 2004 to 2010 in Seattle-Puget Sound metropolitan area. A selection
of 938 cancer-free participants served as the control group. The analysis
revealed that young women who had previously or were currently smoking a pack of
cigarettes a day, and had done so for at least 10 years, were 60 percent more
likely to develop estrogen receptor positive breast cancer -- the most common
type of breast cancer.
The study failed to find a connection between smoking and the risk of
triple-negative breast cancer, a less common but more aggressive type.
[The Science Recorder]