Integration of a Mental Health App (e-MICHI) Into a Blended Treatment of Depression in Adolescents: Single-Group, Naturalistic Feasibility Trial

Lena Lincke   ^{1, 2 *} , MSc ;   Tim Martin-Döring   ^{1, 2 *} , MSc ;   Andrea Daunke   ^{1, 2} , Dipl-Psych ;   Antonia Sadkowiak   ¹ ;   Daria Alexandra Nolkemper   ^{3, 4} , MA ;   Nina Sproeber-Kolb   ⁵ , Prof Dr ;   Stefanie Bienioschek   ^{3, 4, 6} , Dr Med ;   Olaf Reis   ^{1, 2} , PhD, PD ;   Michael Kölch   ^{1, 2} , Prof Dr Med

¹ Department of Child and Adolescent Psychiatry, Neurology, Psychosomatics and Psychotherapy, Rostock University Medical Center, Rostock, Germany

² Partner Site Greifswald/Rostock, German Center for Child and Adolescent Health (DZKJ), Rostock, Germany

³ Brandenburg Medical School Theodor Fontane (MHB), Neuruppin, Germany

⁴ Department of Child and Adolescent Psychiatry, Psychotherapy and Psychosomatics, University Hospital Ruppin-Brandenburg (ukrb), Neuruppin, Germany

⁵ School of Social Work, Baden-Wuerttemberg Cooperative State University, Stuttgart, Germany

⁶ Faculty of Health Sciences, Joint Faculty of the University of Potsdam, the Brandenburg University of Technology Cottbus-Senftenberg and the Brandenburg Medical School Theodor Fontane, Potsdam, Germany

*these authors contributed equally