1 Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; Department of Cardiology, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan. Electronic address: isogait@m.u-tokyo.ac.jp.
2 Department of Nursing Administration and Advanced Clinical Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
3 Department of Prevention of Diabetes and Lifestyle-Related Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
4 Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan.