The aims of this study were to: a) determine if self‐efficacy mediates the relationship between perceived stress and diabetes self‐management in adolescents with type 1 diabetes; and b) explore whether perceived stress moderated the self‐efficacy and diabetes self‐management relationship.. To read the full article, log in using your NHS Athens details. To access full-text: click “Log in/Register” (top right hand side). Click ‘Institutional Login’ then select 'OpenAthens Federation', then ‘NHS England’. Enter your Athens details to view the article.