RT Journal Article SR Electronic T1 Promoting cessation resources through cigarette package warning labels: a longitudinal survey with adult smokers in Canada, Australia and Mexico JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP e23 OP e31 DO 10.1136/tobaccocontrol-2014-051589 VO 24 IS e1 A1 James F Thrasher A1 Amira Osman A1 Crawford Moodie A1 David Hammond A1 Maansi Bansal-Travers A1 K Michael Cummings A1 Ron Borland A1 Hua-Hie Yong A1 James Hardin YR 2015 UL http://tobaccocontrol.bmj.com/content/24/e1/e23.abstract AB Introduction Health warning labels (HWLs) on tobacco packaging can be used to provide smoking cessation information, but the impact of this information is not well understood. Methods Online consumer panels of adult smokers from Canada, Australia and Mexico were surveyed in September 2012, January 2013 and May 2013; replenishment was used to maintain sample sizes of 1000 participants in each country at each wave. Country-stratified logistic Generalised Estimating Equation (GEE) models were estimated to assess correlates of citing HWLs as a source of information on quitlines and cessation websites. GEE models also regressed having called the quitline, and having visited a cessation website, on awareness of these resources because of HWLs. Results At baseline, citing HWLs as a source of information about quitlines was highest in Canada, followed by Australia and Mexico (33%, 19% and 16%, respectively). Significant increases over time were only evident in Australia and Mexico. In all countries, citing HWLs as a source of quitline information was significantly associated with self-report of having called a quitline. At baseline, citing HWLs as a source of information about cessation websites was higher in Canada than in Australia (14% and 6%, respectively; Mexico was excluded because HWLs do not include website information), but no significant changes over time were found for either country. Citing HWLs as a source of information about cessation websites was significantly associated with having visited a website in both Canada and Australia. Conclusions HWLs are an important source of cessation information.