Journal of the National Cancer Institute Advance Access originally published online on October 30, 2009
JNCI Journal of the National Cancer Institute 2009 101(22):1532-1534; doi:10.1093/jnci/djp420
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© Oxford University Press 2009.
NEWS |
Are Smokers Now at Higher Risk of Bladder Cancer? Are Changes in Cigarettes To Blame?
| The first 10% of the full text of this article appears below. |
Researchers were caught off guard in 1989, when the Surgeon General's report showed that the risk of lung cancer among smokers had increased substantially between the 1960s and the 1980s. Tobacco companies had been changing the design of cigarettes since the 1950s, first by adding a filter and then by reducing tar and nicotine, and the assumption had been that the changes would make cigarettes safer. The Surgeon General's report, which was based on a comparison of two very large cohorts, suggested just the opposite: Far from making the cigarettes safer, the design changes might have made them even more dangerous.
A debate over the consequences of the cigarette changes has continued
Getting the Data