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Lung Cancer Blog: Why Blacks Are More Prone To Lung Cancer?

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Jan 26, 2006

Why Blacks Are More Prone To Lung Cancer?

Why Blacks Are More Prone To Lung Cancer?
Given the same amount of exposure to cigarette smoke, the risk of developing lung cancer is much more in blacks compared to the white population. Recent data suggest that this difference in vulnerability for development of lung cancer may be in the genes rather than in the environment.

These results are from a study which is said to be the largest ever done on this subject. This study also found that Hispanic and Asian smokers were less likely than black smokers to develop lung cancer. This racial difference in risk of development of lung cancer was apparent only among light smokers. Once they smoke heavily the high risk caused by heavy smoking buffers the genetic difference between races. These racial differences disappear in those who smoke, more than a pack and a half per day.

Doctors have long known that blacks are substantially more likely than whites to develop lung cancer and more likely to die from it. But the reasons for the disparity are unclear.

Some say the difference is a matter of genetics, while others contend smoking habits may play a role. For example, researchers say blacks tend to puff more deeply than whites, which may expose them to more carcinogens. Smoking rates are also slightly higher among blacks, but whites tend to smoke more cigarettes a day.

In this study that was published in the latest issue of New England Journal of Medicine, researchers compared the lung cancer risk among ethnic groups who smoked the same amount. Researchers say that findings suggest genes may be one of the important factors that explain the racial difference in susceptibility to lung cancer.

This study involved more than 180,000 people, more than half of them belonged to minority ethnic groups.

Scott      



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Janet      


Lung cancer
We engage a never-ending daily struggle to understand and defeat the hidden mysteries of cancer. This is a long and laborious fight, but some moments stand out as grim reminders of the severity of the problem and ruthlessness of the enemy. We recently heard about the sad demise of Peter Jennings, who was the news anchor of ABC News for a long time.

Lung Cancer Blog: Why Blacks Are More Prone To Lung Cancer?

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