Individual-Level Modeling of Depressive Symptom Severity Using Smartphone and Wearable Data: Time-Aware 1-Year Study With Feature-Group Contributions

Simon Schreynemackers   ^{1, 2 *} , MSc ;   Johannes Leimhofer   ^{1, 2, 3 *} , MSc ;   Milica Petrovic   ^{1, 2} , PhD ;   Hanna Reich   ^{1, 2} , Dr rer nat ;   Sascha Ludwig   ⁴ , MSc ;   Andreas Dominik   ⁵ , Prof Dr ;   Dominik Heider   ⁶ , Prof Dr rer nat ;   Ulrich Hegerl   ^{1, 2, 7} , Prof Dr med ;   the MONDY Consortium   ⁸

¹ German Foundation for Depression and Suicide Prevention, Leipzig, Germany

² Research Centre of the German Foundation for Depression and Suicide Prevention, Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Hesse, Germany

³ Institute of Computer Science, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, North Rhine-Westphalia, Germany

⁴ Institute for Applied Informatics, Leipzig University, Leipzig, Saxony, Germany

⁵ Department of Mathematics Natural Sciences and Informatics, Life Science Informatics Group, University of Applied Sciences, Giessen, Germany

⁶ Institute of Medical Informatics, University of Münster, Münster, North Rhine-Westphalia, Germany

⁷ Goethe Research Professorship, Department for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Frankfurt, Hesse, Germany

⁸ See Acknowledgments

*these authors contributed equally