In a survey of 1836 adult US smokers, when using a direct comparison measure, 22.1% reported snus was less harmful than were cigarettes. When asked indirectly (estimating the health risk of snus and cigarettes in 2 seprate questions and comparing the answers to each other), 51.6% rated snus as less risky. The Food and Drug Administration should consider both direct and indirect measures when perceived risk data are presented as evidence for tobacco regulations.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/perceptions-relative-risk-snus-and-cigarettes-among-us-smokers
[2] http://admin.indiaenvironmentportal.org.in/category/author/lucy-popova
[3] http://admin.indiaenvironmentportal.org.in/category/author/pamela-m-ling
[4] http://admin.indiaenvironmentportal.org.in/category/journal/american-journal-public-health
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/smoking
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tobacco