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Title: WHO guidelines for a healthy diet and mortality from cardiovascular disease in European and American elderly: the CHANCES project.
Authors: Jankovic N,  Geelen A,  Streppel MT,  de Groot LC,  Kiefte-de Jong JC,  Orfanos P,  Bamia C,  Trichopoulou A,  Boffetta P,  Bobak M,  Pikhart H,  Kee F,  O'Doherty MG,  Buckland G,  Woodside J,  Franco OH,  Ikram MA,  Struijk EA,  Pajak A,  Malyutina S,  Kubinova R,  Wennberg M,  Park Y,  Bueno-de-Mesquita HB,  Kampman E,  Feskens EJ
Journal: Am J Clin Nutr
Date: 2015 Oct
Branches: NEB
PubMed ID: 26354545
PMC ID: PMC4588736
Abstract: BACKGROUND: Cardiovascular disease (CVD) represents a leading cause of mortality worldwide, especially in the elderly. Lowering the number of CVD deaths requires preventive strategies targeted on the elderly. OBJECTIVE: The objective was to generate evidence on the association between WHO dietary recommendations and mortality from CVD, coronary artery disease (CAD), and stroke in the elderly aged ≥60 y. DESIGN: We analyzed data from 10 prospective cohort studies from Europe and the United States comprising a total sample of 281,874 men and women free from chronic diseases at baseline. Components of the Healthy Diet Indicator (HDI) included saturated fatty acids, polyunsaturated fatty acids, mono- and disaccharides, protein, cholesterol, dietary fiber, and fruit and vegetables. Cohort-specific HRs adjusted for sex, education, smoking, physical activity, and energy and alcohol intakes were pooled by using a random-effects model. RESULTS: During 3,322,768 person-years of follow-up, 12,492 people died of CVD. An increase of 10 HDI points (complete adherence to an additional WHO guideline) was, on average, not associated with CVD mortality (HR: 0.94; 95% CI: 0.86, 1.03), CAD mortality (HR: 0.99; 95% CI: 0.85, 1.14), or stroke mortality (HR: 0.95; 95% CI: 0.88, 1.03). However, after stratification of the data by geographic region, adherence to the HDI was associated with reduced CVD mortality in the southern European cohorts (HR: 0.87; 95% CI: 0.79, 0.96; I(2) = 0%) and in the US cohort (HR: 0.85; 95% CI: 0.83, 0.87; I(2) = not applicable). CONCLUSION: Overall, greater adherence to the WHO dietary guidelines was not significantly associated with CVD mortality, but the results varied across regions. Clear inverse associations were observed in elderly populations in southern Europe and the United States.