Prospective Epidemiological Research on Functioning Outcomes Related to Major Depressive Disorder in Japan (PERFORM-J): Protocol for a Prospective Cohort Study

Tomiki Sumiyoshi   ^{1, 2} , MD, PhD ;   Koichiro Watanabe   ³ , MD, PhD ;   Shinichi Noto   ⁴ , PhD ;   Shigeru Sakamoto   ⁵ ;   Yoshiya Moriguchi   ⁶ , MD ;   Shuichi Okamoto   ⁵ , MD, PhD

¹ Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan

² Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan

³ Department of Neuropsychiatry, Kyorin University School of Medicine, Tokyo, Japan

⁴ Department of Health Sciences, Niigata University of Health and Welfare, Niigata, Japan

⁵ Japan Medical Affairs, Japan Pharma Business Unit, Takeda Pharmaceutical Company Limited, Tokyo, Japan

⁶ Medical Affairs, Lundbeck Japan KK, Tokyo, Japan