London Aug 18 (IANS) Researchers have identified a "robust association" between e-cigarette use among teenagers and the increased probability of smoking a cigarette within a year.
"The findings suggest that among the teenagers who had never smoked the use of e-cigarettes was a strong predicator that within 12 months they would have tried a conventional cigarette " said lead investigator Mark Conner Professor at University of Leeds in Britain.
The research published in the journal Tobacco Control surveyed 2 836 adolescents from 20 schools in England.
Some had tried tobacco but the vast majority were non-smokers. A third had used an e-cigarette.
They were re-surveyed a year later and asked if they had tried a conventional cigarette and how often.
Among the adolescents who had never smoked but had tried an e-cigarette 118 out of 343 reported smoking at least one cigarette (34 per cent) over the year.
Among the group who had not smoked and never used an e-cigarette the figure was 124 out of 1383 (just under nine per cent).
The survey data revealed that e-cigarette use was a greater risk factor for starting smoking in those with no smoking friends than for those who had a friendship network where most smoked.
"Adolescents who have used e-cigarettes and who initially have no friends who smoke may be at particular risk of starting to smoke cigarettes " study co-author Sarah Grogan from Manchester Metropolitan University said.
"This is particularly interesting as it runs contrary to the suggestion that adolescents who try e-cigarettes would have been likely to try smoking anyway due to factors such as peer pressure from friends who smoke " Grogan said.
--IANS
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