Effectiveness of a Web-Based Screening and Fully Automated Brief Motivational Intervention for Adolescent Substance Use: A Randomized Controlled Trial

Nicolas Arnaud   ^{1 *} , PhD ;   Christiane Baldus   ^{1 *} , PhD ;   Tobias H Elgán   ² , PhD ;   Nina De Paepe   ³ , M Sc ;   Hanne Tønnesen   ^{4, 5} , MD,PhD ;   Ladislav Csémy   ⁶ , PhD ;   Rainer Thomasius   ¹ , MD

¹ German Centre for Addiction Research in Childhood and Adolescence (DZSKJ), Centre for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

² Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm, Sweden

³ VAD, Vereniging voor Alcohol- en andere Drugproblemen, Brussels, Belgium

⁴ Clinical Health Promotion Centre, Faculty of Medicine, Lund University & Skåne University Hospital, Malmö, Sweden

⁵ WHO Collaborating Centre, Bispebjerg & Frederiksberg Hospital Faculty of Medicine, University of Southern Denmark, Copenhagen, Denmark

⁶ Centre for Epidemiological and Clinical Research on Addictions, National Institute of Mental Health (NIMH), Klecany, Czech Republic

*these authors contributed equally