Statistical analysis plan for the stepped wedge clinical trial Healing Right Way-enhancing rehabilitation services for Aboriginal Australians after brain injury.

Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE

Original Publication: [London] : BioMed Central, 2006-

Brain Injuries, Traumatic* ; Stroke*; Adult ; Humans ; Australia ; Native Hawaiian or Other Pacific Islander ; Quality of Life ; Clinical Trials as Topic

Background: Aboriginal Australians are known to suffer high levels of acquired brain injury (stroke and traumatic brain injury) yet experience significant barriers in accessing rehabilitation services. The aim of the Healing Right Way trial is to evaluate a culturally secure intervention for Aboriginal people with newly acquired brain injury to improve their rehabilitation experience and quality of life. Following publication of the trial protocol, this paper outlines the statistical analysis plan prior to locking the database.  METHODS: The trial involves a stepped wedge design with four steps over 3 years. Participants were 108 adult Aboriginal Australians admitted to one of eight hospitals (four rural, four urban) in Western Australia within 6 weeks of onset of a new stroke or traumatic brain injury who consented to follow-up for 26 weeks. All hospital sites started in a control phase, with the intervention assigned to pairs of sites (one metropolitan, one rural) every 26 weeks until all sites received the intervention. The two-component intervention involves training in culturally safe care for hospital sites and enhanced support provided to participants by Aboriginal Brain Injury Coordinators during their hospital stay and after discharge. The primary outcome is quality of life as measured by the Euro QOL-5D-3L VAS. A mixed effects linear regression model will be used to assess the between-group difference at 26 weeks post-injury. The model will control for injury type and severity, age at recruitment and time since commencement of the trial, as fixed effects. Recruitment site and participant will be included as random effects. Secondary outcomes include measurements of function, independence, anxiety and depression, carer strain, allied health occasions of service received and hospital compliance with minimum processes of care based on clinical guidelines and best practice models of care.
Discussion: The trial will provide the first data surrounding the effectiveness of an intervention package for Aboriginal people with brain injury and inform future planning of rehabilitation services for this population. The statistical analysis plan outlines the analyses to be undertaken.
Trial Registration: Australia New Zealand Clinical Trials Registry ACTRN12618000139279. Registered 30 January, 2018.
(© 2022. The Author(s).)

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1132468 National Health and Medical Research Council Australia; 1132468 Royal Perth Hospital Medical Research Foundation; 1132468 Western Australian Department of Health

Keywords: Aboriginal; Brain injury; Rehabilitation; Statistical analysis plan; Stepped wedge randomised control trial; Stroke

Date Created: 20221023 Date Completed: 20221027 Latest Revision: 20221027

20240628

PMC9587581

10.1186/s13063-022-06800-0

36273182