Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/44682
Title: Primary prevention of cardiovascular disease with a Mediterranean diet
Authors: Estruch, Ramón
Ros, Emilio
Salas-Salvadó, Jordi
Covas, Maria Isabel
Corella, Dolores
Arós, Fernando
Gómez-Gracia, Enrique
Ruiz-Gutiérrez, Valentina
Fiol, Miquel
Lapetra, José
Lamuela-Raventos, Rosa Maria
Serra-Majem, Lluís 
Pintó, Xavier
Basora, Josep
Muñoz, Miguel Angel
Sorlí, José V.
Martínez, José Alfredo
Martínez-González, Miguel Angel
Keywords: Olive Oil Intake
Metabolic Syndrome
Risk-Factors
Style Diet
Adherence, et al
Issue Date: 2013
Publisher: 0028-4793
Journal: New England Journal of Medicine 
Abstract: BACKGROUNDObservational cohort studies and a secondary prevention trial have shown an inverse association between adherence to the Mediterranean diet and cardiovascular risk. We conducted a randomized trial of this diet pattern for the primary prevention of cardiovascular events.METHODSIn a multicenter trial in Spain, we randomly assigned participants who were at high cardiovascular risk, but with no cardiovascular disease at enrollment, to one of three diets: a Mediterranean diet supplemented with extra-virgin olive oil, a Mediterranean diet supplemented with mixed nuts, or a control diet (advice to reduce dietary fat). Participants received quarterly individual and group educational sessions and, depending on group assignment, free provision of extra-virgin olive oil, mixed nuts, or small nonfood gifts. The primary end point was the rate of major cardiovascular events (myocardial infarction, stroke, or death from cardiovascular causes). On the basis of the results of an interim analysis, the trial was stopped after a median follow-up of 4.8 years.RESULTSA total of 7447 persons were enrolled (age range, 55 to 80 years); 57% were women. The two Mediterranean-diet groups had good adherence to the intervention, according to self-reported intake and biomarker analyses. A primary end-point event occurred in 288 participants. The multivariable-adjusted hazard ratios were 0.70 (95% confidence interval [CI], 0.54 to 0.92) and 0.72 (95% CI, 0.54 to 0.96) for the group assigned to a Mediterranean diet with extra-virgin olive oil (96 events) and the group assigned to a Mediterranean diet with nuts (83 events), respectively, versus the control group (109 events). No diet-related adverse effects were reported.CONCLUSIONSAmong persons at high cardiovascular risk, a Mediterranean diet supplemented with extra-virgin olive oil or nuts reduced the incidence of major cardiovascular events. (Funded by the Spanish government's Instituto de Salud Carlos III and others; Controlled-Trials.com number, ISRCTN35739639.)
URI: http://hdl.handle.net/10553/44682
ISSN: 0028-4793
DOI: 10.1056/NEJMoa1200303
Source: New England Journal of Medicine[ISSN 0028-4793],v. 368, p. 1279-1290
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