Identifying Behavior Change Techniques for Digital Interventions Addressing Alcohol and Tobacco Co-Use: Findings From a Delphi Consensus Study

Anuijan Chandran   ^{1, 2} , HBSc, MSc ;   Scott Veldhuizen   ^{1, 3, 4} , PhD ;   Kamna Mehra   ¹ , MBBS, MSc, DNB ;   Laurie Zawertailo   ^{1, 4, 5, 6} , PhD ;   Jurgen Rehm   ^{2, 4, 5, 7, 8} , PhD ;   Christian S Hendershot   ^{9, 10, 11, 12} , PhD ;   Peter Selby   ^{1, 2, 3, 4, 5, 7, 8} , MBBS ;   Nadia Minian   ^{1, 2, 3, 4, 5, 6} , PhD

¹ INTREPID Lab, Centre for Addiction and Mental Health, Toronto, ON, Canada

² Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada

³ Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada

⁴ Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, Toronto, ON, Canada

⁵ Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada

⁶ Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada

⁷ Department of Psychiatry, University of Toronto, Toronto, ON, Canada

⁸ Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada

⁹ Department of Population and Public Health Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States

¹⁰ Institute for Addiction Science, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States

¹¹ Department of Psychiatry & the Behavioral Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States

¹² Department of Psychology, University of Southern California, Los Angeles, CA, United States