[1] Kitasato Univ, Dept Rehabil Sci, Grad Sch Med Sci, Sagamihara, Kanagawa, Japan
[2] Tokyo Metropolitan Inst Gerontol, Tokyo, Japan
[3] Natl Inst Publ Hlth, Ctr Outcomes Res & Econ Evaluat Hlth, Saitama, Japan
[4] Natl Ctr Global Hlth & Med, Dept Epidemiol & Prevent, Ctr Clin Sci, Tokyo, Japan
[5] Sagami Circulatory Organ Clin, Dept Rehabil, Sagamihara, Kanagawa, Japan