Effects of Internet-Based Cognitive Behavioral Therapy in Routine Care for Adults in Treatment for Depression and Anxiety: Systematic Review and Meta-Analysis

Anne Etzelmueller   ^{1, 2, 3, 4} , Dipl-Psych ;   Christiaan Vis   ^{3, 4} , MSc ;   Eirini Karyotaki   ^{3, 5} , PhD ;   Harald Baumeister   ⁶ , PhD, Dipl-Psych ;   Nickolai Titov   ⁷ , PhD ;   Matthias Berking   ¹ , PhD ;   Pim Cuijpers   ^{3, 4} , PhD ;   Heleen Riper   ^{3, 4, 8} , PhD ;   David Daniel Ebert   ^{1, 2, 3} , PhD

¹ Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany

² GET.ON Institute GmbH, Hamburg, Germany

³ Department of Clinical, Neuro-, & Developmental Psychology, Faculty of Behavioural and Movement Sciences, VU Amsterdam, Amsterdam, Netherlands

⁴ Amsterdam Public Health Research Institute, Mental Health, Amsterdam, Netherlands

⁵ Department of Global Health and Social Medicine, Harvard Medical School, USA, Boston, MA, United States

⁶ Department of Clinical Psychology and Psychotherapy, Institute of Psychology and Education, Ulm University, Ulm, Germany

⁷ eCentre Clinic Department of Psychology, Macquarie University, Sydney, Australia

⁸ Community Mental Health Centre GGZ inGeest, Amsterdam, Netherlands