1 Department of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan. takasugi@hama-med.ac.jp.
2 Faculty of Health and Sport Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-Ward, Tokyo, 112-0012, Japan.
3 Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-Ward, Chiba, 263-8522, Japan.
4 Design Research Institute, Chiba University, 1-19-1 Bunka, Sumida-ku, Tokyo, 131-0044, Japan.
5 Faculty of Social Welfare, Nihon Fukushi University, Okuda, Mihama-cho, Chita-gun, Aichi, 470-3295, Japan.
6 Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu-City, Aichi, 474-8511, Japan.
7 Department of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.