[1] Tokyo Med & Dent Univ TMDU, Grad Sch Hlth Care Sci, 1-5-45 Yushima,Bunkyo Ku, Tokyo 1138519, Japan
[2] Osaka Univ, Grad Sch Med, Dept Genome Informat, 2-2 Yamadaoka, Suita, Osaka 5650871, Japan
[3] Univ Tsukuba, Hlth Serv Res & Dev Ctr, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
[4] Int Univ Hlth, Dept Gen Internal Med, Narita, Chiba 2860124, Japan
[5] Welf Narita Hosp, 852 Hatakeda, Narita, Chiba 2860124, Japan
[6] Natl Ctr Geriatr & Gerontol, Dept Social Sci, 7 430 Morioka cho, Morioka, Aichi 4748511, Japan
[7] Univ Tsukuba, Grad Sch Comprehens Human Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
[8] Univ Tsukuba, Fac Med, Dept Hlth Serv Res, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058577, Japan
[9] 1-1-1 Kenkyu Gakuen, Tsukuba, Ibaraki 3058555, Japan
[10] Natl Ctr Neurol & Psychiat, Natl Inst Mental Hlth, 4-1-1 Ogawa Higashi, Kodaira, Tokyo 1878551, Japan
[11] Assoc Hlth Econ Res & Social Insurance & Welf, Inst Hlth Econ & Policy, Res Dept, 1-21-19 Toranomon,Minato ku, Tokyo 1050001, Japan
[12] Natl Univ Singapore, Alice Lee Ctr Nursing Studies, Clin Res Ctr, Yong Loo Lin Sch Med, Level 2,Block MD11,10 Med Dr, Singapore 117597, Singapore
[13] Osaka Univ, Grad Sch Med, Dept Med Informat, 2-2 Yamadaoka, Suita 5650871, Japan
[14] Teikyo Heisei Univ, 4-21-2 Nakano, Nakano 1648530, Japan