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Article History

Accepted: 19 May 2022

First Online: 15 June 2022

Declarations

:

: This work was supported by a Grant from the National Natural Science Foundation of China (Grant number 71874209, 82073818); the research project of the Health Commission of Hunan province (Grant number 202113050283); and the Postgraduate Scientific Research Innovation Project of Hunan Province (Project No. CX20210350). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

: All authors declare that they have no conflict of interest.

: Not applicable.

: Not applicable.

: Not applicable.

: All datasets presented in this study are included in the article/Supplementary Material.

: The code associated with this study is proprietary.

: SXQ, XHW, XMW, CQT, XHZ conceived and designed the study. SXQ, XMW, XHW, SNL, XL, LDY, LBP, MYW, YP, LTW developed the economic model, collected the data, performed the analyses, interpreted the results. CQT, XHZ, XHW supervised the analyses. SXQ, XMW drafted and critically revised the manuscript for important intellectual content and approved the version to be published. All authors had full access to all the data and take responsibility for the integrity of the data and reviewed and approved the final version.