Screening Depressive Symptoms and Incident Major Depressive Disorder Among Chinese Community Residents Using a Mobile App–Based Integrated Mental Health Care Model: Cohort Study

Huimin Zhang   ^{1, 2 *} , PhD ;   Yuhua Liao   ^{1, 2 *} , PhD ;   Xue Han   ² , PhD ;   Beifang Fan   ² , MD ;   Yifeng Liu   ² , MA ;   Leanna M W Lui   ^{3, 4, 5} , PhD ;   Yena Lee   ^{3, 4, 5} , PhD ;   Mehala Subramaniapillai   ^{3, 4, 5} , PhD ;   Lingjiang Li   ⁶ , PhD, MD ;   Lan Guo   ^{1 *} , PhD, MD ;   Ciyong Lu   ^{1 *} , PhD, MD ;   Roger S McIntyre   ^{3, 4, 5} , MD, PhD

¹ Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

² Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, China

³ Mood Disorders Psychopharmacology Unit, University Health Network, Department of Psychiatry, University of Toronto, Toronto, ON, Canada

⁴ Institute of Medical Science, University of Toronto, Toronto, ON, Canada

⁵ Department of Pharmacology, University of Toronto, Toronto, ON, Canada

⁶ Mental Health Institute of the Second Xiangya Hospital, Central South University, Changsha, China

*these authors contributed equally