[1] UCL, Inst Epidemiol & Hlth Care, Dept Behav Sci & Hlth, 1-19 Torrington Pl, London WC1E 7HB, England
[2] Natl Ctr Geriatr & Gerontol, Res Inst, Dept Social Sci, 7-430 Morioka, Obu, Aichi 4748511, Japan
[3] Japan Soc Promot Sci, Chiyoda, Tokyo, Japan
[4] Chiba Univ, Ctr Prevent Med Sci, Dept Community Bldg Well being, Chiba, Japan
[5] Inst Hlth Econ & Policy, Res Dept, Tokyo, Japan