[1] Univ Tokyo, Grad Sch Med, Dept Mental Hlth, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[2] Hanoi Univ Publ Hlth, Fac Environm & Occupat Hlth, Dept Occupat Hlth & Safety, Hanoi, Vietnam
[3] Hanoi Univ Publ Hlth, Fac Social & Behav Sci, Hanoi, Vietnam
[4] Tokyo Med & Dent Univ, Grad Sch Hlth Care Sci, Dept Mental Hlth & Psychiat Nursing, Tokyo, Japan
[5] Tokyo Womens Med Univ, Sch Med, Dept Hyg & Publ Hlth, Div Publ Hlth, Tokyo, Japan
[6] Bach Mai Hosp, Nursing Off, Hanoi, Vietnam
[7] Bach Mai Hosp, Hanoi, Vietnam
[8] Inst Mental Hlth, Natl Addict Management Serv, Singapore, Singapore
[9] Univ Melbourne, Melbourne Sch Populat & Global Hlth, Melbourne, Vic, Australia
[10] Kitasato Univ, Dept Publ Hlth, Sch Med, Sagamihara, Kanagawa, Japan