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Article History

Received: 2 February 2020

Accepted: 14 May 2020

First Online: 24 May 2020

Ethics approval and consent to participate

: Written or verbal informed consent was required from an adult (18 years and over, usually parent or legal guardian) responsible for participants aged 12 to 15 years at the time of the NDSHS survey. The La Trobe University Human Ethics Sub-Committee approved this project (Ref S17–215).

: Not applicable.

: Mohd Masood is an Associate Editor of BMC Public Health.