Powell, G. A. http://orcid.org/0000-0003-3840-2534
Bonnett, L. J. http://orcid.org/0000-0002-6981-9212
Smith, C. T. http://orcid.org/0000-0003-3051-1445
Hughes, D. A. http://orcid.org/0000-0001-8247-7459
Williamson, P. R. http://orcid.org/0000-0001-9802-6636
Marson, A. G. http://orcid.org/0000-0002-6861-8806
Funding for this research was provided by:
Medical Research Council (MR/L004933/2/P16, MR/K025635/1)
Article History
Received: 16 August 2020
Accepted: 24 April 2021
First Online: 5 July 2021
Declarations
:
: To request identifiable data from routine data sources, participant consent was required. Participant Information Leaflets were provided and informed written consent obtained from all study participants. The North of Scotland Research Ethics Service (16/NS/0007) and Health Research Authority (IRAS 189002) approved the study.
: Not applicable.
: All authors have completed the ICMJE uniform disclosure form at ExternalRef removed and declare: This report is independent research arising from a Clinical Training Fellowship (GA Powell) awarded by the Medical Research Council Hubs for Trials Methodology Research (MRC HTMR) (MR/L004933/2/P16). PW is funded by the MRC HTMR (North West Hub Grant Code: MR/K025635/1). GP, LJB, CTS, DAH, PRW and AGM have no financial relationships with any organisations that might have an interest in the submitted work in the previous 3 years and no other relationships or activities that could appear to have influenced the submitted work.