[1] Kanagawa Inst Technol, Fac Hlth & Med Sci, Dept Nursing, Atsugi 2430292, Japan
[2] Josai Int Univ, Fac Nursing, Dept Nursing, Togane 2838555, Japan
[3] Kitamura Inst Mental Hlth Tokyo, Shibuya ku, Tokyo 1510063, Japan
[4] Imperial Gift Fdn Boshi Aiiku Kai, Res Inst, Minato ku, Tokyo 1068580, Japan
[5] Yokohama City Univ, Sch Med, Dept Nursing, Yokohama 2360004, Japan
[6] Univ Tokyo, Grad Sch Med, Dept Midwifery & Womens Hlth, Div Hlth Sci & Nursing, Bunkyo ku, Tokyo 1130033, Japan
[7] St Lukes Int Univ, Dept Midwifery, Chuo ku, Tokyo 1040044, Japan
[8] St Lukes Int Univ, Grad Sch Nursing Sci, Global Hlth Nursing, Chuo ku, Tokyo 1040044, Japan
[9] Int Univ Hlth & Welf, Dept Nursing, Global Hlth Nursing, Narita 2868686, Japan
[10] Univ Otago, Sch Sociol, Gender Studies & Criminol Programme, Box 56, Dunedin 9054, New Zealand
[11] St Lukes Int Univ, Grad Sch Publ Hlth, Chuo ku, Tokyo 1040045, Japan
[12] Musashino Univ, Fac Nursing, Dept Nursing, Pediat Nursing, Koto ku, Tokyo 1358181, Japan
[13] Tokyo Fdn Policy Res, Minato ku, Tokyo 1066234, Japan