Journal
ARCHIVES OF OPHTHALMOLOGY
Volume 127, Issue 5, Pages 656-665Publisher
AMER MEDICAL ASSOC
DOI: 10.1001/archophthalmol.2009.76
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Funding
- Australian National Health and Medical Research Council [974159, 211069]
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Objective: To assess the relationship between baseline dietary fatty acids and 10-year incident age-related macular degeneration (AMD). Methods: In an elderly Australian cohort, 3654 participants were examined at baseline and 2454 were examined 5 and/or 10 years later. We assessed AMD from retinal photographs. Participants completed a semiquantitative food frequency questionnaire. Results: After adjusting for age, sex, and smoking, 1 serving of fish per week was associated with reduced risk of incident early AMD (relative risk, 0.69 [95% confidence interval, 0.49-0.98]), primarily among participants with less than the median linoleic acid consumption (0.57 [0.36-0.891). Findings were similar for intake of long-chain omega-3 polyunsaturated fatty acids. One to 2 servings of nuts per week was associated with reduced risk of incident early AMD (relative risk, 0.65 [95% confidence interval, 0.47-0.91]). Protective associations between the intake of nuts and reduced risk of pigmentary abnormalities were seen among nonsmokers, participants with less than the median ratio of serum total to high-density lipoprotein cholesterol, and those with beta carotene intake greater than the median level. Conclusions: This study provides evidence of protection against early AMD from regularly eating fish, greater consumption of w-3 polyunsaturated fatty acids, and low intakes of foods rich in linoleic acid. Regular consumption of nuts may also reduce AMD risk. joint effects from multiple factors are suggested.
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