Funding for this research was provided by:
Natural Sciences and Engineering Research Council of Canada (NSERC Discovery Grant)
Received: 22 May 2019
Accepted: 20 August 2019
First Online: 5 September 2019
Ethics approval and consent to participate
: Data used for this study is not publicly available, and was collected by Wellington-Dufferin-Guelph Public Health. Permissions for sharing the data were outlined in a Data Release Agreement between Wellington-Dufferin-Guelph Public Health and the participating Boards of Education. Use of the data for this study was approved by the University of Guelph Research Ethics Board (REB # 18-04-010).
: Not applicable.
: The authors declare that they have no competing interests.