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Associations between fruit and vegetable, and antioxidant nutrient intake and age-related macular degeneration by smoking status in elderly Korean men
- Associations between fruit and vegetable, and antioxidant nutrient intake and age-related macular degeneration by smoking status in elderly Korean men
- Kim E.-K.; Kim H.; Vijayakumar A.; Kwon O.; Chang N.
- Ewha Authors
- 장남수; 권오란; 김혜숙
- SCOPUS Author ID
- 장남수; 권오란; 김혜숙
- Issue Date
- Journal Title
- Nutrition Journal
- vol. 16, no. 1
- Age-related macular degeneration; Antioxidants; Elderly male smokers; Fruit and vegetables; KNHANES
- BioMed Central Ltd.
- SCIE; SCOPUS
- Background: Age-related macular degeneration (AMD) is one of the major causes of irreversible blindness. The objective of this study was to determine whether there is any relationship between dietary intake of fruits and vegetables (F&V) and antioxidant nutrients including carotenoids and AMD according to smoking status in elderly men. Methods: We performed a cross-sectional analysis using nationally representative samples of elderly aged ≥ 65 years (n = 1414) from the Korea National Health and Nutrition Examination Survey (KNHANES, 2010-2012). Results: The current smokers consumed less food in total, and, in particular, less cereals/potatoes/sugar products, fruits and vegetables than the nonsmokers and former smokers (p < 0.05). Intake of energy, thiamin, vitamin C, Vitamin A, and β-carotene were significantly lower in the current smokers than in the nonsmokers and the former smokers. For current smokers, the ORs of the highest tertile compared with the lowest tertile were 0.36 (95% CI: 0.14-0.96, p for trend = 0.0576) for F&V, 0.32 (95% CI: 0.12-0.85, p for trend = 0.0561) for vitamin C, 0.23 (95% CI: 0.08-0.67, p for trend = 0.0038) for α-carotene, 0.13 (95% CI: 0.04-0.46, p for trend = 0.0003) for β-carotene after adjusting for confounding factors. In contrast, there was no association between antioxidant nutrient intake and AMD among the nonsmokers and former smokers. Conclusions: These results suggest that increased consumption of fruits and vegetables containing antioxidant components such as vitamin C, α-carotene, and β-carotene may have a protective effect on AMD. These effects may be more evident among current smokers. © 2017 The Author(s).
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