Predicting and Monitoring Symptoms in Patients Diagnosed With Depression Using Smartphone Data: Observational Study

Arsi Ikäheimonen   ¹ , MSc ;   Nguyen Luong   ¹ , MSc ;   Ilya Baryshnikov   ^{2, 3} , MD, PhD ;   Richard Darst   ⁴ , PhD ;   Roope Heikkilä   ⁵ , MA ;   Joel Holmen   ^{6, 7} , MD, PhD ;   Annasofia Martikkala   ^{2, 3} , MD ;   Kirsi Riihimäki   ^{3, 8} , MD, PhD ;   Outi Saleva   ³ , MD ;   Erkki Isometsä   ^{2, 3} , MD, PhD ;   Talayeh Aledavood   ¹ , PhD

¹ Department of Computer Science, Aalto University, Espoo, Finland

² Department of Psychiatry, University of Helsinki, Helsinki, Finland

³ Helsinki and Uusimaa Hospital District, Helsinki, Finland

⁴ School of Science, Aalto University, Espoo, Finland

⁵ City of Helsinki Mental Health Servcies, Helsinki, Finland

⁶ University of Turku, Turku, Finland

⁷ Turku University Central Hospital, Turku, Finland

⁸ Finnish Institute for Health and Welfare, Helsinki, Finland