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Arch Neurol. 2002 Aug;59(8):1258-63.

Caloric intake and the risk of Alzheimer disease.

Author information

  • 1Taub Institute for Research of Alzheimer's Disease and the Aging Brain, Columbia University, 630 W 168th St, New York, NY 10032, USA.

Abstract

BACKGROUND:

Diet may play a role in Alzheimer disease (AD).

OBJECTIVE:

To examine the association between caloric intake and AD.

METHODS:

Elderly individuals free of dementia at baseline (N = 980) were followed for a mean of 4 years. Daily intake of calories, carbohydrates, fats, and protein were recalled using a semiquantitative food frequency questionnaire administered between the baseline and first follow-up visits. Proportional hazards models were used to examine the associations of quartiles of intake and incident AD, adjusting for confounders.

RESULTS:

There were 242 incident cases of AD during 4023 years of follow-up (6 cases per 100 person-years). Compared with individuals in the lowest quartile of caloric intake, those in the highest quartile had an increased risk of AD (hazard ratio, 1.5; 95% confidence interval [CI], 1.0-2.2). Among individuals with the apolipoprotein E epsilon4 allele, the hazard ratios of AD for the highest quartiles of calorie and fat intake were 2.3 (95% CI, 1.1-4.7) and 2.3 (95% CI, 1.1-4.9), respectively, compared with the lowest quartiles. The hazard ratios of AD for the highest quartiles of calorie and fat intake compared with the lowest quartiles in individuals without the apolipoprotein E epsilon4 allele were close to 1 and were not statistically significant (P =.83 and P =.61, respectively).

CONCLUSION:

Higher intake of calories and fats may be associated with higher risk of AD in individuals carrying the apolipoprotein E epsilon4 allele.

PMID:
12164721
[PubMed - indexed for MEDLINE]
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