Funding for this research was provided by:
Natural Science Foundation of Ningbo (2021J262)
Received: 26 June 2022
Accepted: 16 August 2022
First Online: 31 August 2022
: The ethics review board of the National Center for Health Statistics approved all NHANES protocols and written informed consents were obtained from all participants. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.