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Title: Influence of dietary total antioxidant capacity on the association between smoking and hypertension in Brazilian graduates.
Authors: Sabião, Thaís da Silva
Bressan, Josefina
Pimenta, Adriano Marçal
Hermsdorff, Helen Hermana Miranda
Oliveira, Fernando Luiz Pereira de
Mendonça, Raquel de Deus
Carraro, Júlia Cristina Cardoso
Aguiar, Aline Silva de
Keywords: Smokers
Food intake
Multicenter study
Issue Date: 2021
Citation: SABIÃO, T. da S. et al. Influence of dietary total antioxidant capacity on the association between smoking and hypertension in Brazilian graduates. Nutrition, Metabolism & Cardiovascular Diseases, v. 33, n. 9, p. 2628-2636, ago. 2021. Disponível em: <>. Acesso em: 11 out. 2022.
Abstract: Background and aims: Hypertension (HTN) is a chronic non-communicable disease influenced by non-modifiable risk factors, such as sex and age, as well as modifiable risk factors such as lifestyle, including diet and smoking. Moreover, diet quality among smokers is worse than that of non-smokers, mainly in terms of antioxidant content. Thus, the current study aimed to investigate whether dietary total antioxidant capacity (dTAC) influences the association be- tween smoking and HTN. Methods and results: This cross-sectional study included 4303 graduates (69.35% women) from the Cohort of Minas Gerais Universities (CUME) project. An online food frequency questionnaire was administered to participants, and dTAC was estimated using the ferric reducing antioxidant power method. In the questionnaires, individuals reported smoking status, systolic and diastolic blood pressure values, previous HTN diagnosis, and use of antihypertensive drugs. Logistic regression models were used to estimate the odds ratio and 95% confidence interval between smoking and HTN, stratified by the median dTAC. Current and former smokers had higher dTAC values despite their lower fruit intake. Moreover, coffee was the main contributor to dTAC among them. Smoking was associated with a higher likelihood of HTN, mainly among individuals with a higher dTAC. However, after exclusion of coffee antioxidant capacity, there was an association be- tween only smoking and HTN in individuals with lower dTAC. Conclusions: The controversial association between higher dTAC and HTN can result from high coffee intake. Higher dTAC without coffee intake may mitigate the association between smoking and HTN in this population.
ISSN: 0939-4753
Appears in Collections:DENCS - Artigos publicados em periódicos

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