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Mediterranean diet associated with lower risk of death in cardiovascular disease patients

Prevention
Public Health & Health Policy


Rome, Italy – 28 Aug 2016: The Mediterranean diet is associated with a reduced risk of death in patients with a history of cardiovascular disease, according to results from the observational Moli-sani study presented at ESC Congress 2016 today.(1)

“The Mediterranean diet is widely recognised as one of the healthier nutrition habits in the world,” said Professor Giovanni de Gaetano, head of the Department of Epidemiology and Prevention at the I.R.C.C.S. Neuromed Institute in Pozzilli, Italy. “In fact, many scientific studies have shown that a traditional Mediterranean lifestyle is associated with a lower risk of various chronic diseases and, more importantly, of death from any cause.”

“But so far research has focused on the general population, which is mainly composed of healthy people,” he added. “What happens to people who have already suffered from cardiovascular disease? Is the Mediterranean diet optimal for them too?”

The answer is yes, according to a study in patients with a history of cardiovascular disease, such as coronary artery disease and stroke. The patients were among the participants enrolled into the Moli-sani project, a prospective epidemiological study that randomly recruited around 25 000 adults living in the Italian region of Molise.(2)

“Among the participants, we identified 1197 people who reported a history of cardiovascular disease at the time of enrolment into Moli-sani,” said Dr Marialaura Bonaccio, lead author of the research.

Food intake was recorded using the European Prospective Investigation into Cancer (EPIC) food frequency questionnaire. Adherence to the Mediterranean diet was appraised with a 9-point Mediterranean diet score (MDS). All-cause death was assessed by linkage with data from the office of vital statistics in Molise.

During a median follow up of 7.3 years there were 208 deaths. A 2-point increase in the MDS was associated with a 21% reduced risk of death after controlling for age, sex, energy intake, egg and potato intake, education, leisure-time physical activity, waist to hip ratio, smoking, hypertension, hypercholesterolaemia, diabetes and cancer at baseline.

When considered as a 3-level categorical variable, the top category (score 6–9) of adherence to the Mediterranean diet was associated with 37% lower risk of death compared to the bottom category (0–3).

Professor de Gaetano said: “We found that among those with a higher adherence to the Mediterranean diet, death from any cause was reduced by 37% in comparison to those who poorly adhered to this dietary regime.”

The researchers deepened their investigation by looking at the role played by individual foods that make up Mediterranean diet. “The major contributors to mortality risk reduction were a higher consumption of vegetables, fish, fruits, nuts and monounsaturated fatty acids – that means olive oil,” said Dr Bonaccio.

Professor de Gaetano concluded: “These results prompt us to investigate the mechanism(s) through which the Mediterranean diet may protect against death. This was an observational study so we cannot say that the effect is causal. We expect that dietary effects on mediators common to chronic diseases such as inflammation might result in the reduction of mortality from any cause but further research is needed.”

Ends

References

(1)Professor Giovanni de Gaetano will present the abstract “Higher adherence to Mediterranean diet is associated with lower risk of overall mortality in subjects with cardiovascular disease: prospective results from the MOLI-SANI study” during:

(2)The Moli-sani project: Started in March 2005, it involves about 25 000 citizens living in the Molise region of Italy. The aim is to learn about environmental and genetic factors underlying cardiovascular disease, cancer and degenerative disorders. The Moli-sani study, now based at the I.R.C.C.S. Neuromed Institute, has transformed an entire Italian region into a large research lab.

Notes to editor

Sources of funding: The enrolment phase of the Moli-sani Study was supported by research grants from Pfizer Foundation (Rome, Italy), the Italian Ministry of University and Research (MIUR, Rome, Italy)–Programma Triennale di Ricerca, Decreto no.1588 and Instrumentation Laboratory, Milan, Italy. Funders had no role in study design, nor in collection, analysis, and interpretation of data; in the writing of the abstract and in the decision to submit the abstract to the ESC meeting. Marialaura Bonaccio was supported by a Fondazione Umberto Veronesi Fellowship. All Authors were and are independent from funders. The analyses included in the poster were partially supported by the Italian Ministry of Health 2013 (Young investigator grant to MB, number: GR-2013-02356060).

Disclosures: None

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About the European Society of Cardiology

The European Society of Cardiology brings together health care professionals from more than 120 countries, working to advance cardiovascular medicine and help people lead longer, healthier lives.

About ESC Congress 2016

ESC Congress is the world’s largest gathering of cardiovascular professionals contributing to global awareness of the latest clinical trials and breakthrough discoveries. ESC Congress 2016 takes place 27 to 31 August at the Fiera di Roma in Rome, Italy. The scientific programme is here. More information is available from the ESC Press Office at press@escardio.org

This press release accompanies both a presentation and an ESC press conference at the ESC Congress 2016. Edited by the ESC from material supplied by the investigators themselves, this press release does not necessarily reflect the opinion of the European Society of Cardiology. The content of the press release has been approved by the presenter.