ABSTRACT NUMBER: ESOC2026A2314 STRENGTHENING STROKE RECOVERY RESEARCH THROUGH IMPROVED REHABILITATION INTERVENTION REPORTING: THE TIDIER-REHAB CHECKLIST

Abstract Background and aims Stroke rehabilitation interventions are complex, multi-component, and highly individualised. Inadequate reporting of intervention content, dosage, and personalisation remains a major barrier to replication, evidence synthesis, and translation into clinical practice. Although the Template for Intervention Description and Replication (TIDieR) checklist supports general intervention reporting, it does not sufficiently capture rehabilitation-specific elements critical to understanding and optimising stroke recovery. Methods The TIDieR-Rehab checklist was developed using a modified Delphi methodology aligned with EQUATOR Network guidance. Rehabilitation experts (n=35) from 10 countries participated in online surveys. Quantitative consensus was assessed using Likert-scale agreement, while qualitative feedback was analysed using conventional content analysis. Findings were triangulated and overseen by an interdisciplinary Steering Committee to iteratively refine checklist items and produce a supplementary manual with reporting guidance and examples. Results Consensus was achieved after two Delphi rounds. The final TIDieR-Rehab checklist comprises 22 items: seven original TIDieR items, three adapted items, and 12 new items specific to rehabilitation. Key enhancements include explicit reporting of the target population; detailed specification of rehabilitation dosage, including amount, challenge, and progression or regression; person-centred tailoring to needs and preferences; and negative or undesired effects. Since publication, TIDieR-Rehab has been cited in rehabilitation intervention trials and incorporated into evidence syntheses and methodological guidance, supporting improved specification and appraisal of stroke rehabilitation interventions. Conclusions The TIDieR-Rehab checklist provides a structured, stroke-relevant framework for reporting of rehabilitation interventions. Early uptake across trials and evidence syntheses indicates its potential to improve reporting quality, strengthen interpretation of stroke recovery research, and support translation into clinical practice. Conflict of interest Nada Signal: Nothing to disclose. Emma Gomes: Nothing to disclose. Gemma Alder: Nothing to disclose. Sharon Olsen: Nothing to disclose.