Funding for this research was provided by:
Department of Science and Technology of Sichuan Province (2019YJ0033)
Health Research of Cadres in Sichuan province (SCR 2019-103)
National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University (Z20192014)
Received: 2 December 2020
Accepted: 11 May 2021
First Online: 25 May 2021
: This study was performed according to the Helsinki Declaration and was approved by the Institutional Review Boards of West China Hospital, Sichuan University. Each participant provided written informed consent. In participants with cognitive impairment, written informed consent was also obtained from a valid surrogate.
: Not applicable.
: The authors declare that they have no competing interests.