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Am J Public Health. 1988 Jun;78(6):694-5.

Prevalence of the misuse of ultra-low-tar cigarettes by blocking filter vents.

Author information

1
Clinical Institute, Addiction Research Foundation, Toronto, Ontario, Canada.

Abstract

Evidence from tar-stain patterns in 135 cigarette filters discarded in ashtrays in public areas of shopping malls was used to estimate the prevalence of behaviorally blocked air dilution vents in ultra-low-yield cigarettes. Nineteen per cent (+/- 4, standard errors of the mean) of the filters had been blocked extremely, 39 per cent (+/- 5 SEM) had been blocked to some degree, and 42 per cent (+/- 5 SEM) had not been blocked at all. Smokers, health practitioners, and researchers need to be warned of the risks of vent blocking.

PMID:
3369602
PMCID:
PMC1350286
DOI:
10.2105/ajph.78.6.694
[Indexed for MEDLINE]
Free PMC Article

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