Is there an impact of public smoking bans on self-reported smoking status and exposure to secondhand smoke?

BMC Public Health · 2011 · PMC3064640 · PMID 21371305

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a decreasing trendno p-value reported

Our results may overestimate the impact of anti-smoking legislation, as there has been a decreasing trend in exposure to passive smoking and the prevalence of smokers in most industrialized countries prior to the introduction of anti-smoking by-laws.

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