1. Department of Pharmacoepidemiology (Sh.T., Sa.T.), Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606–8507, Japan
2. Department of Biostatistics (S.I., Y.O.), School of Public Health, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
3. The Institute for Adult Diseases (Y.A.), Asahi Life Foundation, Tokyo 100-0005, Japan
4. Department of Internal Medicine (N.Y.), University of Tsukuba Institute of Clinical Medicine, Tsukuba, Ibaraki 305–8577, Japan
5. Tokyo Metropolitan Geriatric Hospital (A.A., H.I.), Tokyo 173-0015, Japan
6. Department of Hematology, Endocrinology, and Metabolism (H.S.), Niigata University Faculty of Medicine, Chuo-ku, Niigata 951–8510, Japan