Table 2.

Summary of Normalisation Process Theory (NPT)-informed interview themes and sub-themes.

NPT Construct	Theme	Sub-Themes
Coherence	Making sense of screening and brief alcohol interventions	Validated screening tools interpreted as a useful framework to inform practice. Limited differentiation between individual components of screening and brief interventions.
Cognitive Participation	Investing in preventative interventions for alcohol	Perceived conflict between structured screening and alcohol interventions and patient-centred approach. Nurses viewed as better suited to delivering routine, task-based preventative care.
Collective Action	Implementing or day-to-day delivery of brief alcohol interventions	Patient-related factors influence GPs’ delivery of alcohol interventions. Financial incentives shape the organisation and provision of screening for problem drinking.
Reflexive Monitoring	Evaluating and modifying brief alcohol interventions, and embedding change	GPs revert to “business as usual” in their approach to preventative alcohol care over time.