Measuring Psychological Well-Being and Behaviors Using Smartphone-Based Digital Phenotyping: An Intensive Longitudinal Observational mHealth Pilot Study Embedded in a Prospective Cohort of Women

Li Yi   ^{1, 2} , PhD ;   Claudia Trudel-Fitzgerald   ^{3, 4, 5} , PhD ;   Cindy R Hu   ⁶ , PhD ;   Grete Wilt   ⁶ , PhD ;   Jorge Chavarro   ^{2, 7} , MD, ScD ;   Jukka-Pekka Onnela   ⁸ , PhD ;   Francine Grodstein   ⁹ , ScD ;   Laura D Kubzansky   ¹⁰ , PhD ;   Peter James   ^{1, 6, 11} , ScD

¹ Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, United States

² Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, United States

³ Département of Psychology, Université du Québec À Trois-Rivières, Trois-Rivières, QC, Canada

⁴ Research Center, Universitaire en Santé Mentale de Montréal, Montréal, QC, Canada

⁵ Lee Kum Sheung Center for Health and Happiness, Harvard University, Boston, MA, United States

⁶ Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, United States

⁷ Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States

⁸ Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, United States

⁹ Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, United States

¹⁰ Department of Social and Behavioral Sciences, Harvard TH Chan School of Public Health, Boston, MA, United States

¹¹ Department of Public Health Sciences, University of California, Davis School of Medicine, Davis, CA, United States