Funding for this research was provided by:
University of Sydney (U2334)
National Health and Medical Research Council
Kuwait Institute for Medical Specializations
Ministry of Health Kuwait
Collaboration for Leadership in Applied Health Research and Care - East Midlands
Leicester Clinical Trials Unit
National Institute for Health Research Diet, Lifestyle & Physical Activity Biomedical Research Unit
Received: 10 April 2019
Accepted: 10 September 2019
First Online: 18 September 2019
Ethics approval and consent to participate
: Ethical approval was obtained by the Kuwait Institute for Medical Specialization (Reference number: VDR/JC/505). Participants’ parents had to sign a consent form to be included in the study.
: Not applicable.
: The authors declare that they have no competing interests.