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Cognitive impairment and preferences for current health
Joseph T King1, Joel Tsevat, Mark S Roberts
1Section of Neurosurgery, VA Connecticut Healthcare System, West Haven, Connecticut, USA. joseph.kingjr@va.gov
Health and Quality of Life Outcomes
|January 13, 2009
Summary
Cognitive impairment in cerebral aneurysm patients is linked to lower health preferences. Impaired patients show varied responses and weaker correlations between health valuation methods.
Area of Science:
- Neuroscience
- Health Economics
- Patient-Reported Outcomes
Background:
- Cerebral aneurysms pose risks of cognitive deficits.
- Assessing patient preferences for health is crucial, especially in vulnerable populations.
Purpose of the Study:
- To evaluate health preferences using Visual Analogue Scale (VAS), Standard Gamble (SG), Time Trade-Off (TTO), and Willingness to Pay (WTP) in cerebral aneurysm patients.
- To investigate the impact of cognitive impairment on these health preference measures.
Main Methods:
- 165 outpatients with cerebral aneurysms completed VAS, SG, TTO, and WTP assessments.
- Cognitive function was evaluated using the Mini Mental State Examination (MMSE), with scores < 24 indicating impairment.
- Preference response distributions were analyzed based on cognitive status and correlated with patient characteristics and aneurysm history.
Main Results:
- 7% of patients exhibited cognitive impairment (MMSE < 24).
- Cognitively impaired patients showed greater variance in SG and TTO responses and altered distributions for VAS and SG.
- Cognitive impairment was associated with significantly lower preferences across VAS, SG, and TTO measures.
Conclusions:
- Cognitive impairment significantly lowers health preferences in cerebral aneurysm patients.
- Cognitively impaired individuals demonstrate poorer correlations between different health preference assessment tools.
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