Dose Effects in Behavioural Treatment of Post-Stroke Aphasia: A Systematic Review and Meta-Analysis
Disability and Rehabilitation
Harvey, S., Carragher, M., et al. (2022).
Disability and Rehabilitation, 44(12), 2548-2559.
This meta-analysis investigates the effect of treatment dosage on improving language and communication in people with post-stroke aphasia.
Australian Government Research Training Program; Centre for Research Excellence in Aphasia Recovery and Rehabilitation (Australia)
Database inception up to September 2020
Randomized controlled trials; quasi-experimental studies; single-case design studies
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Preliminary findings suggested that increased dose may be associated with larger improvement in language and communication measures, but the amount of improvement may lessen over time. The authors indicated that a meta-analysis could not be completed due to heterogeneity in treatments and outcomes across studies. Further research is warranted to determine dose effects of behavioral interventions following aphasia post stroke. Additional research is also needed to determine the impact of time post stroke on dose effects and whether specific person-level and treatment-level characteristics help explain variability in dose-response relationships.
