Table 2 Framework Analysis (seven step) method

Stage 1.

Transcription: Audio recordings were transcribed verbatim and pseudonymised. Detailed notes were taken by each interviewer (all authors), structured around the COM-B framework and additional questions.

Stage 2.

Familiarisation with the interview: Two authors (EA and AB) familiarised themselves with each interview by reviewing the detailed interview notes, and full transcript when available.

Stage 3.

Coding: EA and AB developed a matrix in an excel file, with columns representing each component of the COM-B framework plus the extra questions, and rows representing each participant. The initial rapid coding process involved systematically reading (and re-reading) the interview notes (and full transcripts where available) for each participant, assigning data to the relevant COM-B and extra question headings and identifying key subthemes within each component. Notes were made on relevant data which did not fit into the COM-B framework as potential inductive themes.

Stage 4.

Developing a working analytical framework: EA and AB met on two occasions to discuss in detail the findings for each participant (row) and the themes identified (column) as enabled by the framework analysis matrix, to agree the key themes, and produced a report of the initial findings.

Stage 5.

Applying the analytical framework: All full transcripts were imported into NVivo and the nodes function was used to set up the analytical framework established in step 4. Each transcript was coded by systematically assigning data to a node in the analytical framework. Authors swapped transcripts for coding so that all interviews were double coded.

Stage 6.

Charting data: Drawing on the full analysis in NVivo, EA created a table of the key themes with illustrative quotes, and reviewed it with all authors.

Stage 7.

Interpreting the data: During regular team meetings (10 meetings over the analysis phase), and via circulation of written materials, impressions and interpretations of the data, coding and the analytical framework were discussed and agreed. Rather than being a final stage, this process was ongoing throughout the analysis process.