Government of the People's Republic of China - Beijing Hospital, Tsinghua University, Chinese Academy of Medical Sciences - Department of Cardiology, Government of the People's Republic of China - Beijing Hospital, Chinese Academy of Medical Sciences - Department of Cardiology, Austrian Academy of Sciences - Vienna Institute of Demography, Vienna University of Economics and Business - Department of Economics, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC), Chinese Academy of Medical Sciences - Department of Cardiology, Government of the People's Republic of China - Beijing Hospital, Chinese Academy of Medical Sciences - Institute of Geriatric Medicine, Chinese Center for Disease Control and Prevention (China CDC) - Division of Elderly Health, Harvard University - T.H. Chan School of Public Health and Chinese Academy of Medical Sciences - Department of Cardiology