Association between long-term ambient air pollution exposure and the risk of breast cancer: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Wu Wei ◽  
Bing-Jie Wu ◽  
Yue Wu ◽  
Zhu-Ting Tong ◽  
Fei Zhong ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Systematic Review ◽  
Air Pollution ◽  
Meta Analysis ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Air Pollution Exposure ◽  
Pollution Exposure

Long-Term Exposure to Ambient Air Pollution and Myocardial Infarction-A systematic review and meta-analysis

2020 ◽  
Author(s):  
Wenning Fu ◽  
Li Zou ◽  
Hongbin Xu ◽  
Xiantao Zeng ◽  
Shijiao Yan ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Systematic Review ◽  
Air Pollution ◽  
Cohort Studies ◽  
Meta Analysis ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Pm 2.5 ◽  
Pm 10

Abstract Background and Objective: An increasing amount of epidemiological original studies suggested that long-term exposure to particulate matter (PM 2.5 and PM 10 ) could be associated with the risk of myocardial infarction(MI), but the results were inconsistent. We aimed to synthesized available cohort studies to identify the association between ambient air pollution (PM 2.5 and PM 10 ) and MI risk by a meta-analysis. Methods: PubMed and Embase were searched through September 2019 to identify studies that met predetermined inclusion criterion. Reference lists from retrieved articles were also reviewed. A random-effects model was used to calculate the pooled relative risk ( RR ) and 95% confidence intervals ( CI ). Results: Twenty-two cohort studies involving 6,567,314 participants and 865,98 patients with MI were included in this systematic review. The pooled results showed that higher levels of ambient air pollution (PM 2.5 and PM 10 ) exposure were significantly associated with the risk of MI. The pooled relative ratio ( RR) for each 10-μg/m 3 increment in PM 2.5 and PM 10 were 1.20 (95% CI : 1.11–1.29), and1.03 (95% CI :1.00-1.07) respectively. Exclusion of any single study did not materially alter the combined risk estimate. Conclusions: Integrated evidence from cohort studies supports the hypothesis that long-term exposure to PM 2.5 and PM 10 as a risk factor for MI.

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