Funding for this research was provided by:
School for Public Health Research (PD-SPH-2015)
Received: 9 July 2020
Accepted: 11 November 2021
First Online: 17 December 2021
: Imperial College Research Ethics Committee (ICREC) have confirmed that ethical approval was not required for this study. This study was a secondary analysis of a dataset accessed via the UK data service.
: Not applicable.
: JP-S is vice-chair of the Royal Society for Public Health, Partner at Lane Clark & Peacock LLP and reports personal fees from Novo Nordisk A/S all outside of the submitted work. All other authors have no competing interests. The funding body had no involvement in the design, analysis or writing of this study.