FDA analysis of cigarette warnings 'inadequate'

Canadian researchers claim that graphic images and warning labels on cigarette packaging do reduce smoking, suggesting the FDA has underestimated their significance.
The saying, "a picture is worth a thousand words" may sound like an advertising executive's mantra, but we often fall for the dream when sleek and glossy images allow us a glimpse of the "perfect world." But does the theory work in reverse?
A report, published in Tobacco Control, shows that when graphic warning labels were printed on cigarette packaging in Canada, smoking rates decreased between 12% and 20%.
The study authors say this challenges the US Food and Drug Administration (FDA) June 2011 findings, claiming the analysis was "flawed."Continent cigarettes.
In August 2012, the US Court of Appeals for the DC Circuit found that the FDA analysis "essentially concedes the agency lacks any evidence that the graphic warnings are likely to reduce smoking rates."
The researchers claim that the FDA significantly underestimated the impact of the warning labels and suggest that their use in the US could potentially lead to a decrease of between 5.3 and 8.6 million smokers. Researchers from the University of Illinois at Chicago, University of Waterloo and the Ontario Institute for Cancer Research in Canada used statistical methods to compare smoking rates in Canada 9 years before and 9 years after the introduction of graphic warning labels.
Canada was the first country in the world to introduce these labels and therefore has more statistical data for measuring their impact than any other country.
In addition, Canada's labeling policy is closer to that of the FDA, meaning it is easier to extrapolate the findings from Canada to the US, especially when coupled with the facts that Canada is culturally and geographically similar.
The researchers claim that smoking rates in Canada fell sharply after graphic warnings were introduced, and they say this was greater than the difference in smoking rates in the US, where there was no change in printed warnings for same time period.
The potential reduction in smoking rates in the US is between 33 and 53 times greater than the FDA's estimate, they say.
Dr. Jidong Huang, lead author of the paper, comments:
"These findings are important for the ongoing initiative to introduce graphic warnings in the US. The original proposal by the FDA was successfully challenged by the tobacco industry, and the court cited the very low estimated impact on smoking rates as a factor in its judgment."