Table 2

Synthesis of results

Study objective	Data items	Reporting
To identify the barriers and facilitators to buprenorphine use experienced by patients, healthcare professionals or within organisations, and healthcare systems.	Reported factors that reduced or facilitated use of buprenorphine at the level of the patient, healthcare professional, organisation and healthcare system level.	The number of articles identified that report barriers or facilitators at each level.
		The number of articles that report barriers or facilitators by domain of the TDF and COM-B model across the levels.
		Description of the types of barriers or facilitators at each level according to the domains of the TDF and COM-B model, and compare prevalent barriers and facilitators between levels.
		The number of articles that report barriers or facilitators that did not align with the domains of the TDF and a description of these barriers or facilitators.
To identify gaps in the literature.	Authors’ reported limitations and gaps.	Description of existing gaps in the literature and areas for future research and evaluation. Description of the domains of the TDF which had none or few coded barriers or facilitators.

COM-B, capability, opportunity and motivation producing behaviour; TDF, Theoretical Domains Framework.