Red meat and chicken consumption and its association with age-related macular degeneration

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Chong EWS, J. A.; Robman, L. D.; Hodge, A. M.; Aung, K. Z.; English, D. R.; Giles, G. G.; Guymer, R. H. (2009) Red meat and chicken consumption and its association with age-related macular degeneration. Am J Epidemiol 169:867-876


Age-related macular degeneration (AMD) is the leading cause of blindness among older people, and diet has been postulated to alter risk of AMD. To evaluate associations between red meat and chicken intake and AMD, the authors conducted a cohort study of 6,734 persons aged 58-69 years in 1990-1994 in Melbourne, Australia. Meat intake was estimated from a food frequency questionnaire at baseline. At follow-up (2003-2006), bilateral digital macular photographs were taken and evaluated for AMD (1,680 cases of early AMD, 77 cases of late AMD). Logistic regression was used to estimate odds ratios, adjusted for age, smoking, and other potential confounders. Higher red meat intake was positively associated with early AMD; the odds ratio for consumption of red meat > or =10 times/week versus <5 times/week="" was="" 1.47="" (95%="" confidence="" interval:="" 1.21,="" 1.79;="" p-trend="">< 0.001).="" similar="" trends="" toward="" increasing="" prevalence="" of="" early="" amd="" were="" seen="" with="" higher="" intakes="" of="" fresh="" and="" processed="" red="" meat.="" conversely,="" consumption="" of="" chicken=""> or =3.5 times/week versus <1.5 times/week="" was="" inversely="" associated="" with="" late="" amd="" (odds="" ratio="0.43," 95%="" confidence="" interval:="" 0.20,="" 0.91;="" p-trend="0.007)." these="" results="" suggest="" that="" different="" meats="" may="" differently="" affect="" amd="" risk="" and="" may="" be="" a="" target="" for="" lifestyle="">

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