Funding for this research was provided by:
Canadian Institutes of Health Research (142416)
Received: 8 August 2019
Accepted: 2 December 2019
First Online: 7 December 2019
Ethics approval and consent to participate
: This study has received approval from the Hamilton Integrated Research Ethics Board (project number 2403) and the University of Manitoba Health Research Ethics Board. Permission to collect EDI data on kindergarten children was obtained from the respective provincial and territorial governments. With the exception of the province of Alberta, which required active, written consent from parents, data in all the other regions were collected via passive consent. The full names of all ethics committees and institutional review boards can be found in the Additional file InternalRef removed.
: Not applicable.
: The authors declare that they have no competing interests.