Han, Changwoo
Funding for this research was provided by:
National Research Foundation of Korea (RS-2023-00210534)
Korea Environmental Industry and Technology Institute (RS-2021-KE001615)
Article History
Received: 3 November 2023
Accepted: 20 January 2024
First Online: 12 February 2024
Declarations
:
: This study used the de-identified secondary data provided by the Statistics Korea and the National Health Insurance Service with no direct involvement of the participants. The data used in this study were anonymized before provision to the authors. Therefore, the patient informed consent procedure is waived by the Institutional Review Board of the Chungnam National University (IRB no. 202106-SB-084-01). All methods were carried out following relevant guidelines and regulations.
: This study complies with relevant guidelines and regulations. All the data were provided by the National Health Insurance Service (NHIS). This study used the de-identified data provided by the Statistics Korea and the NHIS.
: Not applicable.
: The authors declare no competing interests.