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Relationship of Glycaemic Index with Cardiovascular Risk Factors: Analysis of the National Diet and Nutrition Survey for People Aged 65 and Older

Milton, Joanne E, Briche, Blandine, Brown, Ian J, Hickson, Mary, Robertson, Claire E and Frost, Gary S (2007) Relationship of Glycaemic Index with Cardiovascular Risk Factors: Analysis of the National Diet and Nutrition Survey for People Aged 65 and Older Public Health Nutrition, 10 (11). pp. 1321-1335. ISSN 1368-9800

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Abstract

Objective: To identify associations between dietary glycaemic index (GI) and weight, body mass index and other risk factors for cardiovascular disease (CVD) – waist-tohip ratio (WHR), lipoprotein fractions, triacylglycerols (TAG) and blood pressure (BP) – in an older British population. Design: Cross-sectional dietary, anthropometric and biochemical data from the National Diet and Nutritional Survey for adults aged over 65 years were reanalysed using a hierarchical regression model. Associations between body weight, CVD risk factors, and dietary factors including GI and fibre intakes were explored among 1152 healthy older people living in the UK between 1994 and 1995. Results: In the unadjusted model, GI was significantly and directly associated with TAG (b ¼ 0.008 ^ 0.003) and diastolic BP (b ¼ 0.325 ^ 0.164) in males. These relationships were attenuated and non-significant after adjustment for potential confounding factors. WHR (b ¼ 0.003 ^ 0.001) and TAG (b ¼ 0.005 ^ 0.002) were significantly predicted by GI in males and females combined. The association with WHR was attenuated by adjustment for sex, age, region and social class; the relationship with TAG was non-significant after adjustment for other potential dietary confounders. Conclusion: After controlling for potential confounders, no clear links were detected between GI and body weight or other CVD risk factors. This study provides little evidence for advising the consumption of a low-GI diet in the elderly to prevent weight gain or improve other CVD risk factors.

Item Type: Article
Additional Information: Copyright The Authors 2007
Related URLs:
Divisions: Faculty of Health and Medical Sciences > Nutrition and Metabolism
Depositing User: Melanie Hughes
Date Deposited: 17 Nov 2010 15:07
Last Modified: 23 Sep 2013 18:39
URI: http://epubs.surrey.ac.uk/id/eprint/2640

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