From 2008 to 2010, 14 countries, most of them being
either low or middle income with a heavy burden of
tobacco use and highly populated, conducted the Global
Adult Tobacco Survey (GATS) to monitor tobacco use in
their countries and the changes driven by policies enacted
in those nations [7]. Selected as one of the 14 countries,
Thailand conducted GATS in 2009 [8,9]. To ensure useful
comparisons across the 14 countries, the survey followed
the standard GATS protocol.