Funding for this research was provided by:
Quality Education Fund of Hong Kong SAR Government (University Project code 7050882, Grant number: EDB/QEF22/17/7)
Text and Data Mining valid from 2019-08-13
Received: 16 March 2018
Accepted: 31 July 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: Ethical approval was granted by the Survey and Behavioural Research Committee of The Chinese University of Hong Kong. Information about HKSHQ and HKHSA was provided to the participating school, teachers, parents and students. Prior written consent was obtained from the involved schools and parents of the involved students before collecting the data for HKSHQ and HKHSA. All identifiable information was recorded confidentially and will not be disclosed to any party other than the research team.
: Not applicable as consent has been obtained for data collection and no identities will be disclosed.
: The authors declare that they have no competing interests. Albert Lee is an associate editor for BMC Public Health and he had no role in the editorial process of this manuscript.