Evaluating population-wide efforts to reduce tobacco use: Continuation of the ITC-Four Country cohort in Australia

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This study is part of a large international collaboration to study whether policies directed at whole communities work as planned. We survey around 2000 smokers from each of 4 countries every year. We compare reactions of smokers in a country with a policy to those in a country without such a policy or with a different policy. We do this by following through the likely chain of effects to smoking cessation. In this way we can provide advice to governments not only on whether their policies work as intended, but how to improve them.