The association between plant-based dietary patterns and risk of breast cancer: a case–control study

Abstract Limited data are available, linking the plant-based diets to breast cancer (BC). We examined the association of overall plant-based diet index (PDI), hypothesized healthful (hPDI) and unhealthful versions of a plant-based diet index (uPDI) with BC in Iranian women. This population-based cas...

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Autores principales:	Somaye Rigi, Seyed Mohammad Mousavi, Sanaz Benisi-Kohansal, Leila Azadbakht, Ahmad Esmaillzadeh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6bf6022804a34514aac58bff800856f0
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spelling	oai:doaj.org-article:6bf6022804a34514aac58bff800856f02021-12-02T14:26:55ZThe association between plant-based dietary patterns and risk of breast cancer: a case–control study10.1038/s41598-021-82659-62045-2322https://doaj.org/article/6bf6022804a34514aac58bff800856f02021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82659-6https://doaj.org/toc/2045-2322Abstract Limited data are available, linking the plant-based diets to breast cancer (BC). We examined the association of overall plant-based diet index (PDI), hypothesized healthful (hPDI) and unhealthful versions of a plant-based diet index (uPDI) with BC in Iranian women. This population-based case–control study included 350 cases with newly diagnosed BC and 700 age-matched apparently healthy controls. We collected dietary data using a validated, Willett-format semi-quantitative food frequency questionnaire. Using these data, we generated a PDI by dedicating positive scores to plant foods, and reverse scores to animal foods, hPDI by assigning positive scores to healthy plant foods and reverse scores to less healthy plant foods and animal foods, and finally uPDI in which positive scores were assigned to less healthy plant foods and reverse scores to healthy plant foods and animal foods. After controlling for potential confounders, individuals in the highest quartile of PDI had 67% lower odds of BC than those in the lowest quartile (OR 0.33; 95% CI 0.22–0.50). Individuals with the greatest adherence to hPDI were 36% less likely to have BC than those with the lowest adherence, in the fully adjusted model (OR 0.64; 95% CI 0.43–0.94). In terms of uPDI, women in the top quartile had a 2.23 times greater chance of BC than those in the bottom quartile (OR 2.23; 95% CI 1.48–3.36). Greater adherence to PDI and hPDI was inversely associated with the risk of BC, whereas uPDI was associated with an increased risk.Somaye RigiSeyed Mohammad MousaviSanaz Benisi-KohansalLeila AzadbakhtAhmad EsmaillzadehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Somaye Rigi Seyed Mohammad Mousavi Sanaz Benisi-Kohansal Leila Azadbakht Ahmad Esmaillzadeh The association between plant-based dietary patterns and risk of breast cancer: a case–control study
description	Abstract Limited data are available, linking the plant-based diets to breast cancer (BC). We examined the association of overall plant-based diet index (PDI), hypothesized healthful (hPDI) and unhealthful versions of a plant-based diet index (uPDI) with BC in Iranian women. This population-based case–control study included 350 cases with newly diagnosed BC and 700 age-matched apparently healthy controls. We collected dietary data using a validated, Willett-format semi-quantitative food frequency questionnaire. Using these data, we generated a PDI by dedicating positive scores to plant foods, and reverse scores to animal foods, hPDI by assigning positive scores to healthy plant foods and reverse scores to less healthy plant foods and animal foods, and finally uPDI in which positive scores were assigned to less healthy plant foods and reverse scores to healthy plant foods and animal foods. After controlling for potential confounders, individuals in the highest quartile of PDI had 67% lower odds of BC than those in the lowest quartile (OR 0.33; 95% CI 0.22–0.50). Individuals with the greatest adherence to hPDI were 36% less likely to have BC than those with the lowest adherence, in the fully adjusted model (OR 0.64; 95% CI 0.43–0.94). In terms of uPDI, women in the top quartile had a 2.23 times greater chance of BC than those in the bottom quartile (OR 2.23; 95% CI 1.48–3.36). Greater adherence to PDI and hPDI was inversely associated with the risk of BC, whereas uPDI was associated with an increased risk.
format	article
author	Somaye Rigi Seyed Mohammad Mousavi Sanaz Benisi-Kohansal Leila Azadbakht Ahmad Esmaillzadeh
author_facet	Somaye Rigi Seyed Mohammad Mousavi Sanaz Benisi-Kohansal Leila Azadbakht Ahmad Esmaillzadeh
author_sort	Somaye Rigi
title	The association between plant-based dietary patterns and risk of breast cancer: a case–control study
title_short	The association between plant-based dietary patterns and risk of breast cancer: a case–control study
title_full	The association between plant-based dietary patterns and risk of breast cancer: a case–control study
title_fullStr	The association between plant-based dietary patterns and risk of breast cancer: a case–control study
title_full_unstemmed	The association between plant-based dietary patterns and risk of breast cancer: a case–control study
title_sort	association between plant-based dietary patterns and risk of breast cancer: a case–control study
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/6bf6022804a34514aac58bff800856f0
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The association between plant-based dietary patterns and risk of breast cancer: a case–control study

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