Unraveling the Black Box: Exploring Usage Patterns of a Blended Treatment for Depression in a Multicenter Study

Lise L Kemmeren   ^{1, 2} , MSc ;   Anneke van Schaik   ^{1, 2} , MD, PhD ;   Johannes H Smit   ^{1, 2} , PhD ;   Jeroen Ruwaard   ^{1, 2} , PhD ;   Artur Rocha   ³ , PhD ;   Mário Henriques   ³ , PhD ;   David Daniel Ebert   ⁴ , PhD ;   Ingrid Titzler   ⁴ , MSc ;   Jean-Baptiste Hazo   ^{5, 6, 7} , MSc ;   Maya Dorsey   ^{5, 6, 7} , MSc ;   Katarzyna Zukowska   ⁸ , MSc ;   Heleen Riper   ^{1, 2, 9} , PhD

¹ Department of Research and Innovation, GGZ inGeest Specialized Mental Health Care, Amsterdam, Netherlands

² Psychiatry, Amsterdam Public Health Research Institute, Amsterdam Universitair Medische Centra, Vrije Universiteit Amsterdam, Amsterdam, Netherlands

³ Centre for Information Systems and Computer Graphics, Institute for Systems Engineering and Computers, Technology and Science, Porto, Portugal

⁴ Department of Clinical Psychology and Psychotherapy, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany

⁵ Eceve, Unit 1123, Inserm, Université de Paris, Paris, France

⁶ Unité de Recherche en Economie de la Santé, Assistance Publique, Hôpitaux de Paris, Paris, France

⁷ World Health Organization Collaborating Centre for Research and Training in Mental Health, Lille, France

⁸ Faculty of Psychology, SWPS University of Social Sciences and Humanities, Warsaw, Poland

⁹ Department of Psychiatry, GGZ in Geest/Amsterdam University Medical Center, VU University Medical Center, Amsterdam, Netherlands