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Health Literacy, Cognitive Function, and Mortality in Patients With Heart Failure
The Journal of Cardiovascular Nursing
|September 28, 2021
Summary
Cognitive functioning, not health literacy, predicted mortality in heart failure patients. This finding highlights the importance of assessing cognitive function to identify individuals at higher risk of death.
Area of Science:
- Cardiology
- Gerontology
- Public Health
Background:
- Health literacy is a known predictor of mortality in heart failure patients.
- The influence of cognitive functioning on this relationship remains under-investigated.
Purpose of the Study:
- To investigate the association between health literacy, cognitive functioning, and mortality in heart failure patients.
- To determine if cognitive functioning modifies the impact of health literacy on heart failure mortality.
Main Methods:
- Secondary analysis of 298 heart failure patients with reduced ejection fraction.
- Health literacy assessed via REALM and METER; cognitive function via 3MS.
- Cox proportional hazards regression used to analyze time-until-death.
Main Results:
- Neither METER nor REALM scores predicted mortality after controlling for covariates.
- The 3MS score significantly predicted mortality in heart failure.
- Inclusion of 3MS improved the overall model fit for predicting mortality.
Conclusions:
- Cognitive functioning emerged as a stronger predictor of mortality than health literacy in this heart failure cohort.
- Further research is warranted to explore the role of cognitive function in heart failure mortality risk.
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