Article History
Received: 1 May 2025
Accepted: 4 August 2025
First Online: 27 August 2025
Declarations
:
: The GBD 2021 study is an open database, and all data is anonymous. This study was reviewed and exempted by the medical science research ethics committee of Shandong Provincial Hospital Affiliated to Shandong First Medical University.
: Not applicable.
: The authors declare no competing interests.