Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis

Polyfluoroalkyl substances (PFASs) are persistent pollutants that may cause breast cancer. However, associations between exposure to PFASs and the risk of breast cancer are controversial. We retrieved studies on the association between PFASs—perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFN...

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Main Authors: Haihong Jiang, Huan Liu, Ge Liu, Jing Yu, Nana Liu, Yunqin Jin, Yongyi Bi, Hong Wang
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Toxics
Subjects:
Online Access:https://www.mdpi.com/2305-6304/10/6/318
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author Haihong Jiang
Huan Liu
Ge Liu
Jing Yu
Nana Liu
Yunqin Jin
Yongyi Bi
Hong Wang
author_facet Haihong Jiang
Huan Liu
Ge Liu
Jing Yu
Nana Liu
Yunqin Jin
Yongyi Bi
Hong Wang
author_sort Haihong Jiang
collection DOAJ
description Polyfluoroalkyl substances (PFASs) are persistent pollutants that may cause breast cancer. However, associations between exposure to PFASs and the risk of breast cancer are controversial. We retrieved studies on the association between PFASs—perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorohexane sulfonic acid (PFHxS), and perfluorooctane sulfonic acid (PFOS)—and breast cancer risk in women from PubMed, Embase, and the Web of Science. The pooled odds ratios (ORs) or relative risks (RRs) and their 95% confidence intervals (CIs) were extracted or calculated from provided data. Moreover, subgroup and metaregression analyses were performed to distinguish the potential sources of heterogeneity between studies. Lastly, eight original studies were included in the meta-analysis. PFOA and PFHxS were positively correlated with breast cancer risk, and the pooled ORs (and 95% CIs) were 1.32 (1.19 and 1.46) and 1.79 (1.51 and 2.11), respectively. PFNA was negatively correlated with breast cancer risk and the pooled OR (and 95% CIs) was 0.76 (0.6 and 0.96), and PFOS was shown to have no correlation with breast cancer risk and the pooled OR (and 95% CIs) was 1.01 (0.87 and 1.17). All results were merged in a random-effects model with significant heterogeneities (<i>I</i><sup>2</sup> > 90%, <i>p</i> < 0.001). The results demonstrated that PFASs might be potential risk factors for breast cancer, and the compounds in low exposure levels could have a more harmful impact on human health.
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spelling doaj.art-d3b4a4c7e7bd42a1893167a04870f71b2023-11-23T19:16:15ZengMDPI AGToxics2305-63042022-06-0110631810.3390/toxics10060318Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-AnalysisHaihong Jiang0Huan Liu1Ge Liu2Jing Yu3Nana Liu4Yunqin Jin5Yongyi Bi6Hong Wang7School of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaSchool of Public Health, Wuhan University, Wuhan 430071, ChinaPolyfluoroalkyl substances (PFASs) are persistent pollutants that may cause breast cancer. However, associations between exposure to PFASs and the risk of breast cancer are controversial. We retrieved studies on the association between PFASs—perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorohexane sulfonic acid (PFHxS), and perfluorooctane sulfonic acid (PFOS)—and breast cancer risk in women from PubMed, Embase, and the Web of Science. The pooled odds ratios (ORs) or relative risks (RRs) and their 95% confidence intervals (CIs) were extracted or calculated from provided data. Moreover, subgroup and metaregression analyses were performed to distinguish the potential sources of heterogeneity between studies. Lastly, eight original studies were included in the meta-analysis. PFOA and PFHxS were positively correlated with breast cancer risk, and the pooled ORs (and 95% CIs) were 1.32 (1.19 and 1.46) and 1.79 (1.51 and 2.11), respectively. PFNA was negatively correlated with breast cancer risk and the pooled OR (and 95% CIs) was 0.76 (0.6 and 0.96), and PFOS was shown to have no correlation with breast cancer risk and the pooled OR (and 95% CIs) was 1.01 (0.87 and 1.17). All results were merged in a random-effects model with significant heterogeneities (<i>I</i><sup>2</sup> > 90%, <i>p</i> < 0.001). The results demonstrated that PFASs might be potential risk factors for breast cancer, and the compounds in low exposure levels could have a more harmful impact on human health.https://www.mdpi.com/2305-6304/10/6/318polyfluoroalkyl substancebreast cancerpollutantmeta-analysis
spellingShingle Haihong Jiang
Huan Liu
Ge Liu
Jing Yu
Nana Liu
Yunqin Jin
Yongyi Bi
Hong Wang
Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
Toxics
polyfluoroalkyl substance
breast cancer
pollutant
meta-analysis
title Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
title_full Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
title_fullStr Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
title_full_unstemmed Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
title_short Associations between Polyfluoroalkyl Substances Exposure and Breast Cancer: A Meta-Analysis
title_sort associations between polyfluoroalkyl substances exposure and breast cancer a meta analysis
topic polyfluoroalkyl substance
breast cancer
pollutant
meta-analysis
url https://www.mdpi.com/2305-6304/10/6/318
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