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Association between household air pollution and all-cause and cause-specific mortality: a systematic review and meta-analysis

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Abstract

Recently, a growing number of epidemiological studies have examined the relationship between household air pollution (HAP) and all-cause and cause-specific mortality. While the results were not entirely consistent, the current study followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) protocol to conduct a comprehensive review and meta-analysis. Data sources were PubMed, Web of Science, Embase, and Cochrane Library for studies published up to 12 May 2022. The pooled relative risks (RRs) with 95% confidence intervals (CI) were used to estimate the effect of household air pollution on all-cause and cause-special mortality. Then I square value (I2) was used to assess heterogeneity, and random-effects model was used as the pooling method. Seventeen studies were included in the quantitative analysis. Our results showed a significant association between household air pollution and increased risks of all-cause mortality (RR = 1.12, 95% CI = 1.06–1.19) and cardiovascular disease mortality (RR = 1.13, 95% CI = 1.04–1.24). Similarly, the associations between household air pollution and mortality from other specific causes (respiratory, ischemic heart disease, stroke, and total cancer) were positive, although they were not statistically significant. The study suggests that exposure to household air pollution increases the risk of all-cause mortality and cardiovascular disease mortality. In addition, our results found a trend of increased mortality from the respiratory system, ischemic heart disease, stroke, and total cancer, with household air pollution.

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The data in this manuscript are from previously published articles, and relevant information of the article is mentioned in the manuscript.

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Acknowledgements

The authors thank the researchers of the study for including in the current systematic review and meta-analysis.

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Contributions

Ning Li, Xianwei Guo, and Yuyan Wu: Conceptualization; Data curation and Formal analysis, Writing—Original Draft Preparation. Vicky Yau, Qiuxia Song, and Wanying Su: Methodology. Hao Wang and Qiwei Liang: Software, Validation. Mingming Liang, Xiuxiu Ding: Data Curation and Reviewing and Editing. Scott Lowe, Yaru Li, Rachel Bentley, Bethany King, and Qin Zhou: Reviewing and Editing. Guangbo Qu and Chenyu Sun: Supervision and Project administration.

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Correspondence to Guangbo Qu or Chenyu Sun.

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This article does not contain any studies of human participants or animals by any of the authors, and we used published data. These data have been widely used in research and are generally available. Therefore, we confirm that all aspects of the work covered in this manuscript were carried out in accordance with ethically approved patient consent.

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The authors declare no competing interests.

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Responsible Editor: Lotfi Aleya.

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Li, N., Guo, X., Wu, Y. et al. Association between household air pollution and all-cause and cause-specific mortality: a systematic review and meta-analysis. Environ Sci Pollut Res 30, 5312–5346 (2023). https://doi.org/10.1007/s11356-022-24222-y

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  • DOI: https://doi.org/10.1007/s11356-022-24222-y

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