Submitted for Publication: March 2, 2012; final revision received May 15, 2012; accepted July 8, 2012.
Published Online: January 9, 2013. doi:10.1001/jamapsychiatry.2013.283
Author Contributions: Dr McKetin had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Conflict of Interest Disclosures: Dr Lubman has provided consultancy advice to Lundbeck and has received travel support and speaker honoraria from AstraZeneca, Bristol-Myers Squibb, Janssen, and Lundbeck. Dr Ali has received travel support and speaker honoraria from Reckitt Benckiser Pharmaceuticals.
Funding/Support: This research was funded by the National Health and Medical Research Council (project grant 350974) and the Australian Government Department of Health and Ageing.
Role of Sponsors: The National Health and Medical Research Council and the Australian Government Department of Health and Ageing, who funded this study, did not participate in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: Data were collected through MATES, conducted by the National Drug and Alcohol Research Centre, University of New South Wales. We thank the project investigators Richard Mattick, Joanne Ross, Jake Najman, and Nicole Lee. We also thank the research officers who assisted in the data collection (Shelley Cogger, Erin Kelly, Kate Hetherington, Grace Ho, Cathie Sammut, Sagari Sarkar, Rachel Sutherland, and Miriam Wyzenbeek), the participating treatment agencies, and the research participants.