{
  "abstract": "Introduction: Children with ADHD face significant unmet needs for timely post-diagnostic support in UK NHS services. Nature-based interventions represent a promising under-researched adjunct to conventional treatment. The CONIFAS2 study will assess the feasibility and acceptability of a co-produced, home-based, nature-based intervention embedded in NHS neurodiversity services. Methods and analysis: This is a feasibility randomised controlled trial assessing recruitment, retention, intervention fidelity, data collection and acceptability of both the intervention and trial design. Participants will be children diagnosed with ADHD and their parent/guardian recruited as a dyad from NHS neurodiversity services. Following baseline assessment, dyads will be randomised to either intervention, which consists of structured daily nature-based activities with psychoeducational support, delivered alongside treatment as usual, or treatment as usual only. A mixed methods process evaluation, will refine a programme theory and identify barriers and facilitators to intervention delivery, engagement and implementation in a future definitive trial. A feasibility health economic evaluation will assess the feasibility of collecting resource use, cost and health-related quality of life data to inform a future cost-effectiveness analysis. Dissemination: Findings will inform a future definitive trial and be disseminated via peer-reviewed publications, conference presentations, and community partners. Trial registration: ISRCTN ISRCTN15490570",
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  "affiliations": [
    "Hull Health Trials Unit, University of Hull, Hull, United Kingdom",
    "School of Nursing and Public Health, Manchester Metropolitan University, Manchester, United Kingdom",
    "Research and Development Department, Humber Teaching NHS Foundation Trust, Hull, United Kingdom",
    "Patient and Public Involvement Lead, Northampton, United Kingdom",
    "Centre for Health Economics, University of York, York, United Kingdom",
    "Institute for Clinical and Applied Health Research, University of Hull, Hull, United Kingdom",
    "Child Oriented Mental Health Innovation Collaborative, Leeds and York Partnership NHS Foundation Trust, York, United Kingdom",
    "KIDS Yorkshire and the Humber, Hull, United Kingdom",
    "Department of Environment and Geography, University of York, York, United Kingdom",
    "Public Contributor, Huddersfield, United Kingdom",
    "Smart Data Donation Service, University of York, York, United Kingdom"
  ],
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    {
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    {
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  "published": "2026-10-07",
  "publisher": "Public Library of Science",
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  "title": "CO-produced Nature-based Intervention Feasibility for children with ADHD Study: The CONIFAS2 study protocol",
  "title_text": "CO-produced Nature-based Intervention Feasibility for children with ADHD Study: The CONIFAS2 study protocol",
  "type": "peer-reviewed",
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