'It's difficult, I think it's complicated': Health care professionals' barriers and enablers to providing opportunistic behaviour change interventions during routine medical consultations.

Across disciplines, health care professionals see the value of opportunistic behaviour change interventions. Barriers related to workload, the clinical environment, competence, and perceptions of the health care professional role must be addressed, using appropriate intervention functions and BCTs, in order to support health care professionals to increase the delivery of interventions in routine practice. Statement of contribution What is already known on this subject? Brief, opportunistic interventions can be a cost effective way of addressing population health problems. Public health policies compel health care professionals to deliver behaviour change interventions opportunistically. Health care professionals do not always deliver interventions opportunistically during routine medical consultations; however the barriers and enablers are currently unclear. What does this study add? This is the first study to examine cross-disciplinary barriers and enablers to delivering opportunistic behaviour change interventions. Across diverse professional groups, working in different medical professions, participants saw the value of delivering opportunistic behaviour change interventions. Targeting key theoretical domains that are shared across professional groups may be useful for increasing the delivery of opportunistic behaviour change interventions.