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Interpreter Communication Quality in Cognitive Assessments for Dementia: The MINDSET Randomized Clinical Trial
Bianca Brijnath1,2,3, Simona Markusevska2, Joanne Enticott4
1School of Humanities and Social Sciences, La Trobe University, Bundoora, Victoria, Australia.
JAMA Network Open
|February 12, 2025
Summary
Online training for dementia assessment interpreters did not significantly improve communication quality in the main analysis. However, a per-protocol analysis showed benefits when interpreters completed at least 70% of the training.
Area of Science:
- Gerontology
- Medical Communication
- Health Services Research
Background:
- Dementia diagnosis relies on effective clinician-patient communication, necessitating skilled interpreters.
- Population aging is increasing dementia prevalence, highlighting the need for improved diagnostic support.
- No prior randomized clinical trials have assessed interventions to enhance interpreter communication in dementia assessments.
Purpose of the Study:
- To evaluate if an online training program, co-designed with interpreters, clinicians, and family carers, enhances interpreter communication quality during dementia cognitive assessments.
- To address the gap in evidence regarding interpreter training for dementia diagnosis.
Main Methods:
- A single-blind, parallel-group randomized clinical trial (Improving Interpreting for Dementia Assessments - MINDSET study) involving certified and provisional interpreters.
- Participants were randomized to an intervention group receiving online training or a waiting list control group.
- Communication quality was assessed using a weighted score across five domains, with analysis using mixed-effects generalized linear regression.
Main Results:
- The primary intention-to-treat analysis showed no significant improvement in overall communication quality (mean score difference, 2.10; P=.10).
- A per-protocol analysis revealed a significant improvement in communication quality when interpreters completed at least 70% of the training (mean score difference, 2.73; P=.04).
- A significant improvement was observed in the 'knowledge of dementia' domain in both main and per-protocol analyses.
Conclusions:
- While the overall intention-to-treat analysis did not show significant improvement, the per-protocol analysis suggests that completing at least 70% of the online training can enhance interpreter communication quality.
- These findings indicate the potential of targeted online training to improve interpreter performance in dementia assessments.
- Further research may explore optimizing training completion rates and specific communication domains.
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