Han, Dong-Hun
Kang, Hee-Yeon
Ryu, Jae-In
Funding for this research was provided by:
National Health Insurance Service in the Republic of Korea (20210504DCF-00)
Article History
Received: 24 February 2023
Accepted: 4 September 2023
First Online: 27 October 2023
Declarations
:
: The authors declare no competing interests.
: The scope of data sharing applicants is limited to the research purpose such as a national institution or academic researcher by official regulation and only the data corresponding to the research design are provided. The applicants should submit the IRB approval by their own institution before request and the National Health Information Data Request Review Committee in the NHIS will review the suitability of the study proposal. After approval, they provided the data after anonymized processing such that a specific individual cannot be recognized without additional information by deleting or replacing part or all personal information. The data deidentified in the form of information of individuals, corporations, and organizations is not identifiable. Ethical review and approval of the Institutional Review Board of Seoul National University School of Dentistry were waived for this study, due to this research using information that is open to the public and does not collect and record personally identifiable information (S-D20210013). The informed consent was waived by the National Health Information Data Request Review Committee in the National Health Insurance Service which provided the data due to the retrospective nature of the study (NHIS-2021-1-444). All methods were carried out following relevant guidelines and regulations.
: Not applicable.