Table 1 Flowchart of the mixed-methods sequential explanatory design

Phase 1: data collection

• Web-based survey

• Numerical data

• Freetext responses

Phase 1: data analysis

• Multi-level models

• Sensitivity analysis

• Coding free text responses

• Descriptive statistics

• Coded themes

Connecting Phase 1 and 2

• Purposive sampling frame determined by survey findings on specific domains

• Develop interview questions to answer questions raised by survey findings

• Interview sample

• Semi-structured interview schedule

Phase 2: data collection

• Individual semi-structured phone interviews (n = 20)

• Verbatim transcription of interview audio recordings

• Interview transcripts

Phase 2: data analysis

• Framework analysis

• Thematic framework

• Indexed and charted data

• Mapping and interpretation of the data

Integration of Phase 1 and 2 results

• Interpretation of the survey data

• Refinement to implementation process

• Discussion

• Refinement of the Mini-AFTER intervention

• Revision of Mini-AFTER study design

• Feasible process for implementing Mini-AFTER in BCN practice

• Future research