Table 1 Reporting recommendations for qualitative research methods in COS development, as developed by Jones et al. [38]

1

Research aims and relationship with broader COS development process

2

Sampling approach

3

Type of data collection methods (e.g. interviews, focus groups, combination); content and derivation/ justification (e.g. topic guide)

4

Analytical approach and justification

5

Sample characteristics and participants numbers

6

Findings related to outcome domains (concordant with research aims)

7

Report approaches to ensuring rigour (e.g. multiple perspectives on the data, respondent validation) and consider reflexive content

8

Discuss the strengths and limitations of the approach