Effectiveness of Self-guided Tailored Implementation Strategies in Integrating and Embedding Internet-Based Cognitive Behavioral Therapy in Routine Mental Health Care: Results of a Multicenter Stepped-Wedge Cluster Randomized Trial

Christiaan Vis   ^{1, 2, 3} , PhD ;   Josien Schuurmans   ⁴ , PhD ;   Bruno Aouizerate   ⁵ , PhD ;   Mette Atipei Craggs   ⁶ , MA ;   Philip Batterham   ⁷ , PhD ;   Leah Bührmann   ⁸ , MSc ;   Alison Calear   ⁷ , PhD ;   Arlinda Cerga Pashoja   ⁹ , PhD ;   Helen Christensen   ¹⁰ , PhD ;   Els Dozeman   ⁴ , PhD ;   Claus Duedal Pedersen   ¹¹ , MA ;   David Daniel Ebert   ^{12, 13} , PhD ;   Anne Etzelmueller   ^{12, 13} , MSc ;   Naim Fanaj   ¹⁴ , PhD ;   Tracy L Finch   ¹⁵ , PhD ;   Denise Hanssen   ¹⁶ , PhD ;   Ulrich Hegerl   ^{17, 18} , PhD ;   Adriaan Hoogendoorn   ^{2, 4, 19} , PhD ;   Kim Mathiasen   ^{6, 20} , PhD ;   Carl May   ²¹ , PhD ;   Andia Meksi   ²² , PhD ;   Sevim Mustafa   ¹⁴ , PhD ;   Bridianne O'Dea   ²³ , PhD ;   Caroline Oehler   ¹⁷ , PhD ;   Jordi Piera-Jiménez   ^{24, 25, 26} , PhD ;   Sebastian Potthoff   ⁸ , PhD ;   Gentiana Qirjako   ²⁷ , PhD ;   Tim Rapley   ⁸ , PhD ;   Judith Rosmalen   ^{16, 28} , PhD ;   Ylenia Sacco   ²⁹ , MSc ;   Ludovic Samalin   ^{30, 31} , PhD ;   Mette Maria Skjoth   ³² , PhD ;   Kristine Tarp   ^{6, 20} , PhD ;   Ingrid Titzler   ³³ , MSc ;   Erik Van der Eycken   ³⁴ , IR ;   Claire Rosalie van Genugten   ^{1, 2} , PhD ;   Alexis Whitton   ²³ , PhD ;   Enrico Zanalda   ²⁹ , PhD ;   Jan H Smit   ^{2, 19} , PhD ;   Heleen Riper   ^{1, 2, 19} , PhD

¹ Clinical, Neuro-, & Developmental Psychology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands

² Amsterdam Public Health research institute, Amsterdam, Netherlands

³ Section for Research-based Innovation, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway

⁴ GGZ InGeest, Amsterdam, Netherlands

⁵ Regional Reference Center for the Management and Treatment of Anxiety and Depressive Disorders, FondaMental Advanced Centre of Expertise in Resistant Depression, Deparment of General and Academic Psychiatry, Charles Perrens Hospital, Bordeaux, France

⁶ Research Unit for Digital Psychiatry, Deptartment of Clinical Research, University of Southern Denmark, Odense, Denmark

⁷ Centre for Mental Health Research, The Australian National University, Canberra, Australia

⁸ Department of Social Work, Education and Community Wellbeing, Northumbria University, Newcastle Upon Tyne, United Kingdom

⁹ London School of Hygiene and Tropical Medicine, London, United Kingdom

¹⁰ Department of Medicine, University of New South Wales, Sydney, Australia

¹¹ Sundhed.dk, Odense, Denmark

¹² Professorship Psychology & Digital Mental Health, Technical University of Munich, Munich, Germany

¹³ HelloBetter, GET.ON Institut für Online Gesundheitstrainings GmbH, Berlin, Germany

¹⁴ Mental Health Center Prizren, Prizren, Kosovo

¹⁵ Department of Nursing, Midwifery and Health, Northumbria University, Newcastle Upon Tyne, United Kingdom

¹⁶ Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, Netherlands

¹⁷ German Depression Foundation, Leipzig, Germany

¹⁸ Department of Psychiatry, Psychosomatics, and Psychotherapy, Goethe Universität, Frankfurt am Main, Germany

¹⁹ Psychiatry, Amsterdam University Medical Center - location VUmc, Amsterdam, Netherlands

²⁰ Centre for Digital Psychiatry, Mental Health Services of Southern Denmark, Odense, Denmark

²¹ Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom

²² Institute of Public Health, Tirana, Albania

²³ Black Dog Institute, University of New South Wales, Sydney, Australia

²⁴ Catalan Health Service, Barcelona, Spain

²⁵ Digitalization for the Sustainability of the Healthcare System DS3-IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain

²⁶ Faculty of Informatics, Multimedia and Telecommunications, Universitat Oberta de Catalunya, Barcelona, Spain

²⁷ Department of Public Health, Faculty of Medicine, University of Medicine, Tirana, Albania

²⁸ Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands

²⁹ Department of Mental Health, Local Health Authority Torino 3, ASLTO3, Torino, Italy

³⁰ Department of psychiatry, Centre Hospitalier Universitaire de Clermont-Ferrand, Expert center for bipolar disorder (Foundation FondaMental), University of Clermont Auvergne, Clermont-Ferrand, France

³¹ Centre national de la recherche scientifique, Clermont-Auvergne INP, Institut Pascal (UMR 6602), Clermont-Ferrand, France

³² Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark

³³ Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany

³⁴ GAMIAN Europe, Brussels, Belgium