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The relationship between age and cognitive function in HIV-infected men
Emily C Kissel1, Nicole D Pukay-Martin, Robert A Bornstein
1Department of Psychiatry, Ohio State University College of Medicine and Public Health, Columbia, 43210-1252, USA.
Summary
Older adults with HIV do not face higher risks of cognitive decline than expected with normal aging. This study found no increased risk for HIV-positive individuals when considering age-related cognitive changes.
Area of Science:
- Neuroscience
- Gerontology
- Infectious Diseases
Background:
- Increased age is a known risk factor for cognitive impairment in individuals with human immunodeficiency virus (HIV).
- The synergistic effect of age and HIV serostatus on cognitive decline requires further investigation.
Purpose of the Study:
- To examine the combined impact of age and HIV serostatus on cognitive decline.
- To determine if older HIV-positive individuals face a disproportionately higher risk of cognitive impairment.
Main Methods:
- A study involving 254 participants stratified by age group and HIV status.
- Neuropsychological assessments were conducted to measure cognitive function.
- Statistical analysis controlled for educational attainment.
Main Results:
- Significant effects of HIV serostatus and age group were observed on overall cognitive impairment.
- Several neuropsychological measures were significantly affected by age and HIV status.
- No significant interaction effects were found between age and HIV serostatus.
Conclusions:
- Older individuals living with HIV do not exhibit an increased risk for HIV-related cognitive impairment when accounting for normal age-related cognitive changes.
- Cognitive decline in older HIV-positive individuals appears to be primarily influenced by age and HIV status independently, rather than a combined synergistic effect.