By Kate Kelland
LONDON (Reuters) - The introduction of plain packaging for tobacco cigarettes sold in Britain from next month could cut the number of smokers in the country by another 300,000 within a year, researchers said on Thursday.
Based on observational evidence and a review of more than 50 experimental studies on the potential impact of plain packs, experts from the Cochrane Review said they appear to diminish the appeal of tobacco and help reduce smoking prevalence.
Australia was the first country in the world to implement standardized packaging of tobacco products, in December 2012, and data collected since then suggest the new measure led to an extra 0.5 percent a year decline in the number of smokers there.
British legislation on plain packaging for tobacco comes into full effect from May 2017. Plain or standardized packs must be a uniform color, have no logos apart from health warnings and other government-mandated information, and use a prescribed uniform font, color and size for the brand name.
"We are not able to say for sure what the impact would be in the UK, but if the same magnitude of decrease was seen.. as was observed in Australia, this would translate to roughly 300,000 fewer (UK) smokers," said Jamie Hartmann-Boyce, a researcher at the Cochrane Tobacco Addiction Group in Oxford.
According to the World Health Organization, tobacco kills more people worldwide than any other preventable cause of death.
The introduction of plain packaging is recommended under the WHO's Framework Convention on Tobacco Control (FCTC).
The Cochrane team analyzed 51 studies and sought to analyze and summarize their findings. This was hampered by the fact that many of the studies differed in the way they were done and also what they measured, and the fact that so far, only one country had implemented standardized packaging.
"Our evidence suggests standardized packaging can change attitudes and beliefs about smoking, and the evidence we have so far suggests that standardized packaging may reduce smoking prevalence and increase quit attempts," Hartmann-Boyce said.
(Editing by Ralph Boulton)