Document is current

Article History

Received: 22 November 2017

Accepted: 18 June 2018

First Online: 27 June 2018

Authors’ information

: KA, HM, and YL also hold appointments in the Dalla Lana School of Public Health, University of Toronto. KA, KV and BN were earlier at Public Health Ontario and were responsible for the development and conduct of the study on which the current paper is based.

: Ethical approval to conduct the study was received from the Ethics Review Board (ERB) of Public Health Ontario (ERB ID: 2013–039.01) in November, 2013. School administrator and teachers were required to provide informed consent in order to participate in the respective surveys. Specifically, the survey link directed respondents to an information letter and consent form outlining the details of the study and use of the data, and assuring confidentiality. Respondents had to click on the “I consent to participate” button to continue. Those who did not provide consent (by clicking on the “I do not consent to participate” button) were led to a page that confirmed the termination of their survey.

: Not applicable. The manuscript does not include any individual person’s data in any form. All of the reported data are in aggregate form.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.