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Article History

Received: 29 March 2022

Accepted: 3 January 2023

First Online: 6 January 2023

Declarations

:

: All methods were performed in accordance with the Declaration of Helsinki. This study received ethical approval from the last author’s university (XDYX2019008 from the Human Research Ethics Committee of the School of Medicine at Xiamen University) and participating hospitals (KY-2019–058 from the Ethics Committee at Xiamen University Affiliated Women and Children's Hospital, XMDY-2020–019 from the Ethics Committee of Xiamen University First Affiliated Hospital).This study collected data from hospital medical records from the period of January 2009 until December 2017, and it is not feasible to find all the women who received surgeries during these periods and have them sign the consent form. Furthermore, this study neither contains personal information nor involves commercial interests. Thus, the requirement for informed consent was waived during ethical applications (Human Research Ethics Committee of the School of Medicine at Xiamen University, Ethics Committee at Xiamen University Affiliated Women and Children's Hospital, and Ethics Committee of Xiamen University First Affiliated Hospital). The patient information was kept confidential, and the results of the study were reflected in the form of group data analysis.

: Not applicable.

: The authors declare that they have no conflicts of interest.