Funding for this research was provided by:
British Heart Foundation
Text and Data Mining valid from 2018-03-20
Received: 7 August 2017
Accepted: 8 March 2018
First Online: 20 March 2018
Ethics approval and consent to participate
: The College of Human and Health Science Ethics Committee at the College of Medicine, Swansea University granted ACTIVE ethical approval on 12/05/2016 (Reference: 090516). Participant consent for primary and secondary outcomes was voluntary and involved parental consent and pupil assent forms.
: Consent has been obtained to publish from the participant’s legal parent or guardian to report individual patient data.
: The authors declare that they have no competing interests.
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