Received: 25 January 2021
Accepted: 15 April 2021
First Online: 27 April 2021
Change Date: 2 June 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/S12913-021-06547-5
: This research was conducted under a research ethics exemption from the NHS Health Research Authority as it was categorised as a service evaluation [CitationRef removed]. All participating interviewees provided informed verbal consent for their interviews to be used for this study.
: Not applicable.
: JV, PM, HB, AG and CE are employees of CPRD. CPRD is jointly sponsored by the UK government’s Medicines and Healthcare products Regulatory Agency (MHRA) and the NIHR As a not-for-profit UK government body, CPRD seeks to recoup the cost of delivering research services to academic, industry, and government researchers through service fees. The RCGP-CPRD QI reports are made available for free to GP practices contributing to CPRD.This paper presents independent research undertaken as part of an NIHR fellowship. The views expressed are those of the author (NK) and not necessarily those of the NHS, the NIHR or the Department of Health and Social Care.