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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Vegetables, unsaturated fats, moderate alcohol intake, and mild cognitive impairment
Rosebud O Roberts1, Yonas E Geda, James R Cerhan
1Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA. roberts.rosebud @ mayo.edu
Background/Aims:
To investigate associations of the Mediterranean diet (MeDi) components and the MeDi score with mild cognitive impairment (MCI).
Methods:
Participants (aged 70-89 years) were clinically evaluated to assess MCI and dementia, and completed a 128-item food frequency questionnaire.
Results:
163 of 1,233 nondemented persons had MCI. The odds ratio of MCI was reduced for high vegetable intake [0.66 (95% CI = 0.44-0.99), p = 0.05] and for high mono- plus polyunsaturated fatty acid to saturated fatty acid ratio [0.52 (95% CI = 0.33-0.81), p = 0.007], adjusted for confounders. The risk of incident MCI or dementia was reduced in subjects with a high MeDi score [hazard ratio = 0.75 (95% CI = 0.46-1.21), p = 0.24].
Conclusion:
Vegetables, unsaturated fats, and a high MeDi score may be beneficial to cognitive function.
Insights
Adhering to the Mediterranean diet, rich in vegetables and unsaturated fats, may help preserve cognitive function and reduce the risk of mild cognitive impairment (MCI) in older adults.
Area of Science:
- Nutritional Neuroscience
- Gerontology
- Epidemiology
Background:
- Mild cognitive impairment (MCI) is a growing concern in aging populations.
- Understanding modifiable risk factors like diet is crucial for cognitive health.
- The Mediterranean diet (MeDi) is associated with various health benefits, but its specific impact on MCI requires further investigation.
Purpose of the Study:
- To examine the relationship between components of the Mediterranean diet (MeDi) and the overall MeDi score with the prevalence of mild cognitive impairment (MCI).
Main Methods:
- A cohort of 1,233 non-demented individuals aged 70-89 years was assessed for MCI and dementia.
- Dietary intake was evaluated using a 128-item food frequency questionnaire.
- Statistical analyses adjusted for potential confounding factors.
Main Results:
- 163 participants were diagnosed with MCI.
- High intake of vegetables was associated with reduced odds of MCI (OR=0.66, P=0.05).
- A higher ratio of unsaturated to saturated fatty acids correlated with lower MCI odds (OR=0.52, P=0.007).
- A high MeDi score showed a trend towards reduced risk of incident MCI or dementia (HR=0.75, P=0.24).
Conclusions:
- Specific components of the Mediterranean diet, namely vegetables and unsaturated fats, appear protective against mild cognitive impairment.
- A higher adherence to the Mediterranean diet may support cognitive function in older adults.
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