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Prospective association between the dietary inflammatory index and cardiovascular diseases in the SUpplementation en VItamines et Mineraux AntioXydants (SU.VI.MAX) cohort
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Edité par CCSD ; Wiley-Blackwell -
Background-Cardiovascular diseases (CVD) are the leading cause of death in the world, and diet plays a major role in CVD incidence, especially through lipid oxidation mechanisms. This, in turn, leads to tissue inflammation and formation of atheromatous plaques. Methods and Results-Our objective was to evaluate the association between the inflammatory potential of the diet and the incidence of overall CVD or its subclasses. We included 7743 participants from the Supplementation en Vitamines et Mineraux AntioXydants (SU.VI.MAX) cohort. All cardiovascular events were recorded using self-reported information or clinical visits, and were validated. The dietary inflammatory index (DII) was computed using repeated 24-hour dietary records (mean=9.5 +/- 3.4 records/subject). Hazard ratio and 95% CI for outcomes (CVD and subclasses) were estimated across sex-specific quartiles of the DII using Cox proportional hazard models. A total of 292 cardiovascular events were recorded and validated during an average of 11.4 years of follow-up: 93 myocardial infarctions, 58 strokes, 128 angina pectoris and revascularization interventions, and 13 significantly associated with a higher risk of myocardial infarction (hazard ratio(Quartile 4 versus Quartile 1)=2.24, 95% CI: 1.08-4.67). No significant association was observed between the DII score and stroke or both angina pectoris and revascularization intervention. Conclusions-A pro-inflammatory diet, as measured by a higher DII score, was prospectively associated with a higher risk of myocardial infarction. Promotion of a diet exhibiting anti-inflammatory properties may help prevent myocardial infarctions.
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