1 Department of Geriatrics of the Fourth Affiliated Hospital, School of Public Health, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China.
2 School of Public Health and the Second Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, China.
3 The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Department of Big Data in Health Science School of Public Health, Center for Clinical Big Data and Analytics Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.