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Proxies and consent discussions for dementia research
Jeremy Sugarman1, Debra Roter, Carole Cain
1Department of Medicine, Phoebe R. Berman Bioethics Institute, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA. jsugarm1@jhmi.edu
Journal of the American Geriatrics Society
|April 3, 2007
Summary
Informed consent for dementia patients requires careful consideration of communication dynamics. Patients often agree, but this may not indicate true assent, highlighting the need to attend to emotional and social aspects in research ethics.
Area of Science:
- Neuroscience
- Bioethics
- Medical Sociology
Background:
- Informed consent is crucial for ethical research participation.
- Research involving patients with dementia often necessitates proxy consent.
- Understanding communication dynamics in these encounters is vital for ethical practice.
Purpose of the Study:
- To analyze communication patterns during informed consent for dementia patients requiring proxy consent.
- To characterize the interaction between patients with dementia, their companions, and physician investigators.
- To assess the coverage of essential elements in the informed consent process for this population.
Main Methods:
- Audiotaping of 26 informed consent encounters for a study on Alzheimer's disease genetic markers.
- Analysis of communication styles and content using the Roter Interaction Analysis System.
- Inclusion of outpatients with dementia and their companions at a research center.
Main Results:
- Patients with dementia (mean MMSE 21.8) primarily expressed agreement (49%) and little biomedical information (7%).
- Companion and physician interactions showed more engagement in biomedical information and emotional expressiveness, respectively.
- Discussion length correlated with cognitive function (MMSE score), but consent element coverage did not.
Conclusions:
- Patient silence and agreement in consent discussions should be interpreted cautiously for individuals with dementia.
- Ethical policies for research with cognitively impaired adults should consider these communication nuances.
- The emotional and social dimensions of informed consent are as important as cognitive aspects and warrant further attention.
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