RT Journal Article SR Electronic T1 Enablers and barriers to primary healthcare for Aboriginal and Torres Strait Islander adolescents: study protocol for participatory mixed-methods research that builds on WHO global standards JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e046459 DO 10.1136/bmjopen-2020-046459 VO 11 IS 4 A1 Ritchie, Tirritpa A1 Purcell, Tara A1 Westhead, Seth A1 Wenitong, Mark A1 Cadet-James, Yvonne A1 Brown, Alex A1 Kirkham, Renae A1 Neville, Johanna A1 Saleh, Clara A1 Brown, Ngiare A1 Kennedy, Elissa C A1 Hennegan, Julie A1 Pearson, Odette A1 Azzopardi, Peter S YR 2021 UL http://bmjopen.bmj.com/content/11/4/e046459.abstract AB Introduction One-third of Australia’s Aboriginal and Torres Strait Islander population are adolescents. Recent data highlight their health needs are substantial and poorly met by existing services. To design effective models of primary healthcare, we need to understand the enablers and barriers to care for Aboriginal and Torres Strait Islander adolescents, the focus of this study.Methods and analysis This protocol was codesigned with Apunipima Cape York Health Council that supports the delivery of primary healthcare for 11 communities in Far North Queensland. We framed our study around the WHO global standards for high-quality health services for adolescents, adding an additional standard around culturally safe care. The study is participatory and mixed methods in design and builds on the recommended WHO assessment tools. Formative qualitative research with young people and their communities (exploring concepts in the WHO recommended quantitative surveys) seeks to understand demand-side enablers and barriers to care, as well as preferences for an enhanced response. Supply-side enablers and barriers will be explored through: a retrospective audit of clinic data (to identify current reasons for access and what can be strengthened); an objective assessment of the adolescent friendliness of clinical spaces; anonymous feedback from adolescent clients around quality of care received and what can be improved; and surveys and qualitative interviews with health providers to understand their perspectives and needs to provide enhanced care. This codesigned project has been approved by Apunipima Cape York Health Council and Far North Queensland Human Research Ethics Committee.Dissemination and implications The findings from this project will inform a codesigned accessible and responsive model of primary healthcare for Aboriginal and Torres Strait Islander adolescents.