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Big C is 'more likely' with low tar cigs; Filter holes raise risk.

Byline: martin bagot

SO-CALLED "light" cigarettes with ventilated filters may have made smokers more vulnerable to what is now the most common form of lung cancer, say scientists. Researchers investigated why rates of adenocarcinoma, a cancer that occurs deep in the lungs, had increased over the past 50 years.

During the same period, the number of people developing other forms of lung cancer had fallen in relation to more smokers quitting tobacco.

The results confirmed what many experts had long suspected. A "clear relationship" was seen between rising rates of adenocarcinoma and greater demand for "light" cigarettes.

Cigarettes with tiny holes in their filters were introduced 50 years ago and vigorously marketed as a healthier "low tar" option.

Dr Peter Shields, from Ohio State University in the US, who led the research, said: "This was done to fool smokers and the public health community into thinking that they were safer.

"Our data suggests a clear relationship between the addition of ventilation holes to cigarettes and increasing rates of lung adenocarcinoma seen over the past 20 years.

"What is especially concerning is these holes are still added to virtually all cigarettes today."

It is now illegal to label cigarette packets with the words "light" or "low tar" in the US and UK.

But the study authors say regulators should take action to ban the ventilation holes.

Shield added: "The filter ventilation holes change how the tobacco is burned, producing more carcinogens, which also allows the smoke to reach the deeper parts of the lung where adenocarcinomas more frequently occur."

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Title Annotation:News; Front Page
Publication:Daily Record (Glasgow, Scotland)
Date:May 22, 2017
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