Funding for this research was provided by:
Dunhill Medical Trust (R33318)
Economic and Social Research Council (ES/K004077/1)
Received: 25 August 2019
Accepted: 14 April 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: Specific ethics approval was not required for our study as this is based upon the analysis of secondary data, the English Longitudinal Study of Ageing (ELSA). Ethical approval for ELSA was obtained from the London Multi-Centre Research Ethics Committee.
: Not applicable.
: Authors declare no competing interests.