Original Article

European Journal of Clinical Nutrition (2006) 60, 214–219. doi:10.1038/sj.ejcn.1602291; published online 19 October 2005

Flavonoid classes and risk of peripheral arterial occlusive disease: a case–control study in Greece

Guarantor: D Trichopoulos.

Contributors: PL designed the present study and drafted the manuscript. ES and KK conducted the statistical analyses. AL was the nutritional epidemiologist in the present study and contributed to the drafting of the manuscript. YS and EP participated in the execution of the original case–control study. DT was the principal investigator in the original case–control study and served as consultant epidemiologist in the present investigation. All authors reviewed the manuscript and approved the submitted version.

P Lagiou1, E Samoli1, A Lagiou1,2, Y Skalkidis3, K Katsouyanni1, E Petridou1 and D Trichopoulos1,4

  1. 1Department of Hygiene and Epidemiology, School of Medicine, University of Athens, Athens, Greece
  2. 2Faculty of Health Professions, Athens Technological Institute (TEI), Akadimia Platonos, Greece
  3. 32nd Department of Surgery, Aretaieion Hospital, School of Medicine, University of Athens, Athens, Greece
  4. 4Department of Epidemiology, Harvard School of Public Health, Boston, USA

Correspondence: Dr P Lagiou, Department of Hygiene and Epidemiology, School of Medicine, University of Athens, 75, M. Asias Street, Goudi, GR-115 27 Athens, Greece. E-mail: pdlagiou@med.uoa.gr

Received 22 April 2005; Revised 20 July 2005; Accepted 13 August 2005; Published online 19 October 2005.

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Abstract

Objective:

 

To assess the relation between specific flavonoid classes and peripheral arterial occlusive disease (PAOD), an important manifestation of atherosclerosis.

Design:

 

Using data from a case–control study conducted in Greece in 1980 on the nutritional epidemiology of PAOD, we have exploited recently published databases on the content of foods in specific flavonoid classes to assess the relation between intake of these compounds and PAOD.

Setting:

 

A major teaching hospital in Athens, Greece.

Subjects:

 

Cases were 100 patients with PAOD and controls 100 patients with minor surgical conditions admitted to the same hospital.

Interventions:

 

No interventions. All cases and controls were interviewed in the hospital wards, and a 110-food item semiquantitative food frequency questionnaire was administered by the same interviewer.

Results:

 

Flavonols, flavones and perhaps flavan-3-ols were inversely associated with PAOD risk, the odds ratios (and 95% confidence intervals) for increments equal to the corresponding standard deviations being 0.41 (0.20–0.86), 0.56 (0.32–0.96) and 0.53 (0.26–1.05), respectively. Total flavonoids were also significantly inversely associated with PAOD.

Conclusions:

 

On the basis of these results, the biological properties of flavonoids and evidence concerning their relation to other manifestations of atherosclerosis, we conclude that dietary intake of specific classes of flavonoids, as well as total flavonoids, may have a protective effect against PAOD.

Sponsorship:

 

This study was partially supported by a grant to Harvard University by the Samourkas Foundation.

Keywords:

flavonoids, peripheral arterial disease, diet, flavonols

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