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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MDPI AG
2021-10-01
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Series: | Cancers |
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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. |
first_indexed | 2024-03-10T06:06:09Z |
format | Article |
id | doaj.art-faac78e965e34781b67e8df3bcfdbb6d |
institution | Directory Open Access Journal |
issn | 2072-6694 |
language | English |
last_indexed | 2024-03-10T06:06:09Z |
publishDate | 2021-10-01 |
publisher | MDPI AG |
record_format | Article |
series | Cancers |
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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