[1] Univ Tokyo, Grad Sch Med, Dept Psychiat Nursing, Tokyo, Japan
[2] Univ Tokyo, Grad Sch Med, Dept Mental Hlth, Tokyo, Japan
[3] Tokyo Womens Med Univ, Dept Publ Hlth, Tokyo, Japan
[4] Univ Tokyo, Grad Sch Med, Sch Publ Hlth, Dept Mental Hlth, Tokyo, Japan