Abstract
Objective: To examine whether diet quality is associated with C-reactive protein concentration.
Design: Cross-sectional study using data from the Third National Health and Nutrition Examination Survey (1988–1994).
Setting: Representative sample of the US population.
Subjects: A total of 13 811 men and women aged ≥20 y.
Interventions: We examined the cross-sectional associations between the Healthy Eating Index (HEI), a measure of diet quality according to the Dietary Guidelines for Americans, and serum C-reactive protein concentration. Dietary information was assessed using a 24-h recall.
Results: After adjustment for age, sex, race or ethnicity, education, smoking status, cotinine concentration, body mass index, waist-hip-ratio, aspirin use, alcohol use, physical activity level, and energy intake, HEI score was inversely associated with an elevated C-reactive protein concentration in logistic regression analysis (odds ratio per 10 unit change: 0.92; 95th confidence interval (CI): 0.86–0.99). Among the components, only the score for grain consumption was inversely associated with an elevated C-reactive protein concentration. Compared with participants in the lowest quintile of number of servings of grain consumption, the adjusted odds ratios of having an elevated C-reactive protein concentration for participants in the second, third, fourth, and fifth quintiles were 0.87 (95th CI: 0.67, 1.12), 0.85 (95th CI: 0.69, 1.06), 0.79 (95th CI: 0.65, 0.96), and 0.68 (95th CI: 0.52, 0.88), respectively.
Conclusions: Grain consumption may reduce inflammation. Our findings require confirmation.
Sponsorship: None.
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Guarantor: E Ford.
Contributors: ESF conceived of the topic of the paper, conducted the analyses, and wrote the paper. AHM and SL participated in the planning of the analyses. AHM and SL reviewed the paper for critical content.
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Ford, E., Mokdad, A. & Liu, S. Healthy Eating Index and C-reactive protein concentration: findings from the National Health and Nutrition Examination Survey III, 1988–1994. Eur J Clin Nutr 59, 278–283 (2005). https://doi.org/10.1038/sj.ejcn.1602070
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DOI: https://doi.org/10.1038/sj.ejcn.1602070
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