Duan, Rufei
Zhang, Hongping
Yu, Jing
Deng, Sisi
Yang, Haijun
Zheng, Yong-Tang
Huang, Yunchao
Zhao, Fanghui
Yang, Hongying
Funding for this research was provided by:
Scientific Research Fund of Yunnan Provincial Department of Education (2022J0142)
Basic Research Project of Yunnan Provincial Department of Science and Technology (202201AY070001-163)
Article History
Received: 27 December 2022
Accepted: 20 April 2023
First Online: 30 June 2023
Declarations
:
: This study is a secondary analysis of data available in the Chinese Cancer Registry Annual Report and National Bureau of Statistics of China. According to the Ethical Requirements and Management Standard for the Sharing and Use of Medical Scientific Data [CitationRef removed], this study did not need ethical approval. Consent to participant is not applicable.
: This study followed the EQUATOR network guidelines.
: Not applicable.
: The authors declare no competing interests.