Table 1.

Summary of data collection and analysis methods

Type of data	Method of collection	Included sample	Method of analysis
Interviews	In-depth, semistructured telephone interviews with frontline healthcare staff were conducted.	24 interviews were conducted between 16 December 2020 and 3 March 2021.	Emerging findings were summarised using RAP sheets, and verbatim transcripts were coded and analysed using framework analysis.
Policies	Relevant policies on the COVID-19 vaccination programme were selected from legislation.gov.uk, https://www.england.nhs.uk and https://www.gov.uk/	24 policies and guidance documents published between 4 December 2020 and 15 February 2021 were identified.	Data were extracted into Excel by hand, cross-checked by another researcher and analysed using the analytical framework.

RAP, rapid assessment procedure.