Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies

Few studies have summarized the association between dietary factors and breast cancer (BC) prognosis among breast cancer survivors (BCS). Therefore, we carried out a systematic review and meta-analysis to determine the associations between dietary factors and BC prognosis among BCS. We performed a l...

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Main Authors: Sin-Hye Park, Tung Hoang, Jeongseon Kim
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/21/5329
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author Sin-Hye Park
Tung Hoang
Jeongseon Kim
author_facet Sin-Hye Park
Tung Hoang
Jeongseon Kim
author_sort Sin-Hye Park
collection DOAJ
description Few studies have summarized the association between dietary factors and breast cancer (BC) prognosis among breast cancer survivors (BCS). Therefore, we carried out a systematic review and meta-analysis to determine the associations between dietary factors and BC prognosis among BCS. We performed a literature search in PubMed and Embase to investigate the association between dietary factors and BC prognosis. We applied a random-effects model to compute the hazard ratio/relative risk and their 95% confidence intervals and heterogeneity (Higgins I<sup>2</sup>) and to generate forest plots using STATA. Among the 2279 papers identified, 63 cohort studies were included in the systematic review and meta-analysis. Our main finding was that higher consumption of beer and saturated fat negatively affected BC prognosis. However, the intake of lignans, fiber, multivitamins, and antioxidants was negatively associated with the risk of mortality. Furthermore, we performed subgroup analyses by menopausal status and dietary or supplementary micronutrient intake. Most trends were similar to the main findings; in particular, the vitamin C, vitamin D, and vitamin E supplements decreased the risk of mortality. This study’s current systematic review and meta-analysis provide comprehensive dietary information for the development of dietary guidelines/recommendations to improve prognosis among BCS.
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spelling doaj.art-faac78e965e34781b67e8df3bcfdbb6d2023-11-22T20:33:39ZengMDPI AGCancers2072-66942021-10-011321532910.3390/cancers13215329Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort StudiesSin-Hye Park0Tung Hoang1Jeongseon Kim2Department of Food Science and Nutrition, Hallym University, Chuncheon 24252, Kangwon-do, KoreaDepartment of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Gyeonggi-do, KoreaDepartment of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang 10408, Gyeonggi-do, KoreaFew studies have summarized the association between dietary factors and breast cancer (BC) prognosis among breast cancer survivors (BCS). Therefore, we carried out a systematic review and meta-analysis to determine the associations between dietary factors and BC prognosis among BCS. We performed a literature search in PubMed and Embase to investigate the association between dietary factors and BC prognosis. We applied a random-effects model to compute the hazard ratio/relative risk and their 95% confidence intervals and heterogeneity (Higgins I<sup>2</sup>) and to generate forest plots using STATA. Among the 2279 papers identified, 63 cohort studies were included in the systematic review and meta-analysis. Our main finding was that higher consumption of beer and saturated fat negatively affected BC prognosis. However, the intake of lignans, fiber, multivitamins, and antioxidants was negatively associated with the risk of mortality. Furthermore, we performed subgroup analyses by menopausal status and dietary or supplementary micronutrient intake. Most trends were similar to the main findings; in particular, the vitamin C, vitamin D, and vitamin E supplements decreased the risk of mortality. This study’s current systematic review and meta-analysis provide comprehensive dietary information for the development of dietary guidelines/recommendations to improve prognosis among BCS.https://www.mdpi.com/2072-6694/13/21/5329breast cancermortalityprognosisdietary factorsbreast cancer survivors
spellingShingle Sin-Hye Park
Tung Hoang
Jeongseon Kim
Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
Cancers
breast cancer
mortality
prognosis
dietary factors
breast cancer survivors
title Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
title_full Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
title_fullStr Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
title_full_unstemmed Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
title_short Dietary Factors and Breast Cancer Prognosis among Breast Cancer Survivors: A Systematic Review and Meta-Analysis of Cohort Studies
title_sort dietary factors and breast cancer prognosis among breast cancer survivors a systematic review and meta analysis of cohort studies
topic breast cancer
mortality
prognosis
dietary factors
breast cancer survivors
url https://www.mdpi.com/2072-6694/13/21/5329
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AT tunghoang dietaryfactorsandbreastcancerprognosisamongbreastcancersurvivorsasystematicreviewandmetaanalysisofcohortstudies
AT jeongseonkim dietaryfactorsandbreastcancerprognosisamongbreastcancersurvivorsasystematicreviewandmetaanalysisofcohortstudies