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Nutrición Hospitalaria

versão On-line ISSN 1699-5198versão impressa ISSN 0212-1611

Resumo

GONI RUIZ, Nuria et al. Association between dietary glycemic index and glycemic load and intima media thickness in a population at high cardiovascular risk: a subgroup analysis in the PREDIMED trial. Nutr. Hosp. [online]. 2015, vol.32, n.5, pp.2319-2330. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.5.9650.

Background: increased carotid íntima-media thickness (IMT) is a marker of atherosclerosis and a predictor of future cardiovascular events. Although a beneficial effect of Mediterranean diets, in particular, enhanced with virgin olive oil and nuts, on longitudinal changes in IMT has been reported, the association between carbohydrates and the development of atherosclerosis is still unclear. Objective: to assess the association between glycemic index (IG) and glycemic load (CG) of the diet and intima media thickness (GIMC) in a population at high cardiovascular risk with no clinical symptoms. Methods: one hundred eighty seven participants of the PREDIMED-NAVARRA center (PREDIMED means in Spanish "PREvención con DIeta MEDiterránea") were randomly selected to undergo baseline and 1-year measurement of GIMC. Dietary information was collected at baseline and yearly using a validated 137-item food frequency questionnaire. Participants were categorized into four groups of energy-adjusted IG and CG intake. Multivariate analysis models (ANCOVA) were used to study the association between dietary IG and CG and GIMC and its changes. Results: in our study we found no significant association between IG or CG and GIMC at baseline or after one year.

Palavras-chave : Altitude; Glycemic index; Glycemic load; Carotid intima-media thickness; Mediterranean diet.

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