Tobacco companies have been lobbying hard to convince the US government that cigarettes should be classified as cigarettes.
But now researchers say the latest study shows that the two forms of tobacco use have different risks.
The new research from the University of North Carolina-Chapel Hill finds that cigarettes are no more harmful than smoking other kinds of tobacco, but that the risks of both forms of smoking are very different.
It also raises questions about the health risks of cigarette smoking.
(Published Thursday, July 18, 2018)More: The study found that smokers who smoke a mixture of cigarettes and tobacco have higher lung cancer risk than those who smoke only cigarettes.
The researchers looked at 5,000 smokers in the U.S. who used at least one form of tobacco in the past 30 days.
The average smoking time was 26 hours, compared with 24 hours for non-smokers.
The study is the latest to suggest that cigarette smoking is as harmful as smoking other tobacco.
The tobacco companies have also been lobbying to get the FDA to classify cigarette smoking as a tobacco product, and they argue that a person can’t quit smoking on their own.
But the American Lung Association said the study didn’t support that argument.
The authors of the new study, led by Dr. Steven A. Koonin, an epidemiologist at the UNC-Chabot Cancer Center, said the new findings suggest that tobacco use and lung cancer are related.
“The association between tobacco use, lung cancer, and cigarette smoking was strong, but the association was weaker when comparing people who smoked both types of tobacco,” said Dr. Kooin, who was not involved in the study.
“If smokers who use tobacco products were less likely to smoke than those in the general population, then this would increase the likelihood of lung cancer.”
The new research also supports the findings of a 2013 study from Duke University.
That study found smoking increases the risk of lung cancers, but not cancer of the esophagus or stomach.
The current study looked at 6,300 people over 18 years.
That research also found that cigarette smokers who smoked a mixture had a 30% increased risk of developing lung cancer.
That’s a risk that increases when the number of cigarettes smoked increases.
But Kooninn’s study looked specifically at smokers who had at least 1 cigarette in the last 30 days, and those who smoked cigarettes only.
The more cigarettes you smoke, the greater the risk, the study found.
The authors said that this study didn to show that smoking causes lung cancer in people who don’t smoke, but said it does support that cigarette use increases the likelihood that lung cancer will develop.
“It doesn’t necessarily mean that cigarette-only smokers who don and don’t have tobacco use will get cancer, but it does show that they should be careful,” said Koonins lead author, Dr. Jeffrey J. Anderson, a Duke professor of epidemiology.
He said that it’s important to recognize that the risk for lung cancer associated with smoking is not identical to that of smoking other types of cigarettes.
He said the tobacco companies should focus more on helping smokers quit.
“We’re not going to be able to prevent people from smoking or quit altogether if we don’t know what they are smoking,” he said.
Kooninn said the findings do not mean people should stop smoking, just that it is a good idea to be aware of your risk factors and make sure you are taking steps to reduce those risks.
He and Anderson are also working on a paper that could help identify smoking-related risk factors for lung cancers in future studies.
More: More than 70 percent of smokers want to quit, study findsThe study was published in the journal PLOS One.