Funding for this research was provided by:
Health Promotion Administration, Ministry of Health and Welfare, Taiwan (MOHW107-HPA-M-114-144703)
Received: 10 March 2020
Accepted: 18 June 2020
First Online: 26 June 2020
Ethics approval and consent to participate
: Access to the research data in the NHIRD was approved by the National Health Research Institutes Review Committee. Approved code by the National Health Research Institutes Review Committee: NHIRD-101-565. All methods were performed in accordance with the institution’s relevant guidelines and regulations. Informed consent for study participant was not necessary because personal identification numbers in the NHIRD are encrypted.
: Not applicable.
: The authors declare no competing interests.