García Expósito, Lucía2026-04-162026-04-162026-04-14Expósito, L. G.2026. “Youth Participation, Agency and Well-Being in Hospital-Linked Contexts: Evidence From the KIDS Programme.” Child: Care, Health and Development 52, no. 3: e70278. https://doi.org/10.1111/cch.70278.0305-1862https://doi.org/10.1111/cch.70278https://hdl.handle.net/20.500.14468/32352This is the Accepted Manuscript of an article published by Wiley in "Child: Care, Health and Development 52", available online: https://doi.org/10.1111/cch.70278Este es el manuscrito aceptado de un artículo publicado por Wiley en "Child: Care, Health and Development 52", disponible en línea: https://doi.org/10.1111/cch.70278Objective: Youth participation is increasingly recognised as a key determinant of adolescent wellbeing, yet empirical evidence from hospital-linked healthcare contexts remains limited. This study examines how participation in the international KIDS programme within the iCAN network relates to adolescents’ participation-linked emotional and academic wellbeing. Materials and Methods: A mixed-methods descriptive and correlational design was employed. Data were collected from 50 adolescents across multiple countries who completed an adapted version of the Tiffany–Eckenrode Program Participation Scale (TEPPS) and open-ended questions. Quantitative analyses included descriptive statistics, reliability testing, exploratory factor analysis, cluster analysis, and regression modelling, complemented by thematic analysis of qualitative responses. Results: The adapted TEPPS demonstrated strong internal reliability (α = .88). Voice and influence together with relational support emerged as the participatory conditions most strongly associated with wellbeing outcomes. Cluster analysis identified four experiential participation profiles, including a highly transformative group characterised by strong agency and elevated wellbeing. Conclusion: Meaningful participation in hospital-linked youth programmes may contribute to adolescents’ perceived wellbeing by fostering agency, recognition, and supportive relational environments. Embedding structured youth participation within healthcare systems may therefore support more responsive and humanised approaches to adolescent care.eninfo:eu-repo/semantics/embargoedAccess58 Pedagogíaartículoyouth participationadolescent developmentadolescent wellbeinghospital-linked settingsyouth voice and agencyrelational support1365-2214