Funding for this research was provided by:
Health Promotion Administration, Ministry of Health and Welfare, Taiwan (BHPPHRC-92-4, DOH93-HP-1702, DOH94-HP-1802, DOH95-HP-1802, DOH96-HP-1702, DOH101-HP-1703, DOH102-HP-1701, MOHW103-HPA-H-114-123706, MOHW104-HPA-H-114-133701, MOHW105-HPA-H-114-000701, MOHW106-HPA-M-114-114701, and MOHW107-HPA-M-114-124701)
Received: 10 October 2019
Accepted: 1 June 2020
First Online: 12 June 2020
Ethics approval and consent to participate
: This study was a secondary data analysis, based on data from the TBCS, and has been approved by the Research Ethics Committee of National Taiwan University (NTU-REC) on March 25, 2019 (NTU-REC No: 201902HM003). The protocol and questionnaires of TBCS were approved by the Directorate-General of Budget, Accounting and Statistics in the Executive Yuan, according to the Statistics Act of Taiwan. Children’s parents or guardians have written the informed consent before each wave of survey.
: Not applicable.
: The authors declare that they have no competing interests.