*Yoshikazu Komura^1,3, Kondo Naoki¹, Aoi Kataoka^2,3, Keisuke Fukui⁴, Tomoki Nakaya⁵, Yuri Ito³ (1. Department of Social Epidemiology, Graduate School of Medicine and School of Public Health, Kyoto University, 2. Division of Molcular Epidemiology, Graduate School of Medicine, Kobe University, 3. Department of Medical Statistics, Research & Development Center, Osaka Medical and Pharmaceutical University, 4. Faculty of Societal Safety Sciences, Department of Safety Management, Kansai University, 5. Graduate School of Environmental Studies, Tohoku University)

*Syohei SYOHEI Miyamoto^1,2, Fumiya Tanji^1,3 (1. Akita Univercity Suicide prevention center, 2. NPO Kumo no ito, 3. Akita Univercity)

*Erika Obikane¹, Tsuguhiko Kato¹, Natsu Sasaki², Daisuke Nishi² (1. National Center for Child Health and Development, 2. The University of Tokyo)

*Tadashi Yamashita¹, Yasuko Nishimura⁴, Pham Nguyen Quy³, Masako Yamada¹, Chika Yamada⁵, Osamu Katayama¹, Minato Nakazawa² (1. Kobe City College of Nursing, 2. Kobe University, 3. Kyoto Miniren Central Hospital, 4. Konan Women's University, 5. Kyoto University)

*Kie Tanaka¹, Ai Noda¹, Setsuko Sato², Yuka Suzuki³, Koutatsu Maruyama⁴, Kiyohide Tomooka², Hiroo Wada¹, Takeshi Tanigawa¹ (1. Department of Public Health, Graduate School of Medicine, Juntendo University, 2. Department of Public Health, Juntendo University, 3. Health Policy and Management, Keio University School of Medicine, 4. Faculty of Agriculture/Graduate School of Agriculture, Faculty of Agriculture Graduate School of Agriculture, Ehime University)