Relationship Between Major Depression Symptom Severity and Sleep Collected Using a Wristband Wearable Device: Multicenter Longitudinal Observational Study

Yuezhou Zhang   ¹ , MSc ;   Amos A Folarin   ^{1, 2, 3} , PhD ;   Shaoxiong Sun   ¹ , PhD ;   Nicholas Cummins   ¹ , PhD ;   Rebecca Bendayan   ^{1, 3} , PhD ;   Yatharth Ranjan   ¹ , MSc ;   Zulqarnain Rashid   ¹ , PhD ;   Pauline Conde   ¹ , BSc ;   Callum Stewart   ¹ , MSc ;   Petroula Laiou   ¹ , PhD ;   Faith Matcham   ⁴ , PhD ;   Katie M White   ⁴ , BSc ;   Femke Lamers   ⁵ , PhD ;   Sara Siddi   ^{6, 7, 8} , PhD ;   Sara Simblett   ⁹ , PhD, DClinPsy ;   Inez Myin-Germeys   ¹⁰ , PhD ;   Aki Rintala   ^{10, 11} , MSc ;   Til Wykes   ^{3, 9} , PhD ;   Josep Maria Haro   ^{6, 7, 8} , MD ;   Brenda WJH Penninx   ⁵ , PhD ;   Vaibhav A Narayan   ¹² , PhD ;   Matthew Hotopf   ^{3, 4} , PhD ;   Richard JB Dobson   ^{1, 2, 3} , PhD ;   RADAR-CNS Consortium   ¹³

¹ Department of Biostatistics & Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom

² Institute of Health Informatics, University College London, London, United Kingdom

³ South London and Maudsley National Health Services Foundation Trust, London, United Kingdom

⁴ Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom

⁵ Department of Psychiatry, Amsterdam Public Health Research Institute and Amsterdam Neuroscience, Amsterdam University Medical Centre, Vrije Universiteit and GGZ inGeest, Amsterdam, Netherlands

⁶ Teaching Research and Innovation Unit, Parc Sanitari Sant Joan de Déu, Fundació Sant Joan de Déu, Barcelona, Spain

⁷ Centro de Investigación Biomédica en Red de Salud Mental, Madrid, Spain

⁸ Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain

⁹ Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom

¹⁰ Center for Contextual Psychiatry, Department of Neurosciences, Katholieke Universiteit Leuven, Leuven, Belgium

¹¹ Faculty of Social Services and Health Care, LAB University of Applied Sciences, Lahti, Finland

¹² Janssen Research and Development LLC, Titusville, NJ, United States

¹³ see Acknowledgments, London, United Kingdom