Table 1. Inclusion and exclusion criteria.

Inclusion criteria	Exclusion Criteria
Populations
• At-risk of developing type 2 diabetes through family history, obesity, lifestyle factors • Primary care staff (clinicians, nurses, and support staff)	• Non-primary care providers • Low-risk patients, those who already have type 2 diabetes or gestational diabetes
Reported Findings & interventions
• Views and experiences of diabetes prevention within primary care among patients and providers • Interventions that focused on primary care staff helping patients prevent diabetes (lifestyle interventions)	• Diabetes prevention strategies outside primary care settings such as hospitals or community centres • Interventions other than lifestyle advice (such as pharmacological interventions)
Study Design
• Published qualitative, mixed methods, or quantitative studies	• Websites, blogs, anecdotal evidence
Countries, dates, language
• Developed countries part of the Organisation for Economic Co-operation and Development (OECD) • 1990 onward • Studies reported in English	• Countries outside of the OECD