Wang, XingKun
Tian, Long
Xu, Qian
Pan, Xin
Kong, Lingjun
Zhao, Hua
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2021QH158)
Shandong Provincial Natural Science Foundation (ZR2021MH134)
Article History
Received: 21 May 2025
Accepted: 14 August 2025
First Online: 21 August 2025
Declarations
:
: The study was approved by the Ethics Review Board of the National Center for Health Statistics (NCHS), and all participants signed informed consent.This study used previously collected deidentified data, which was deemed exempt from review by the Ethics Committee of qilu hospital, shandong university.
: The authors declare no competing interests.