PMID- 34293557 OWN - NLM STAT- MEDLINE DCOM- 20211110 LR - 20240404 IS - 1879-1298 (Electronic) IS - 0045-6535 (Print) IS - 0045-6535 (Linking) VI - 286 IP - Pt 1 DP - 2022 Jan TI - Health effects of air pollutant mixtures on overall mortality among the elderly population using Bayesian kernel machine regression (BKMR). PG - 131566 LID - S0045-6535(21)02038-5 [pii] LID - 10.1016/j.chemosphere.2021.131566 [doi] AB - It is well documented that fine particles matter (PM(2.5)), ozone (O(3)), and nitrogen dioxide (NO(2)) are associated with a range of adverse health outcomes. However, most epidemiologic studies have focused on understanding their additive effects, despite that individuals are exposed to multiple air pollutants simultaneously that are likely correlated with each other. Therefore, we applied a novel method - Bayesian Kernel machine regression (BKMR) and conducted a population-based cohort study to assess the individual and joint effect of air pollutant mixtures (PM(2.5), O(3), and NO(2)) on all-cause mortality among the Medicare population in 15 cities with 656 different ZIP codes in the southeastern US. The results suggest a strong association between pollutant mixture and all-cause mortality, mainly driven by PM(2.5). The positive association of PM(2.5) with mortality appears stronger at lower percentiles of other pollutants. An interquartile range change in PM(2.5) concentration was associated with a significant increase in mortality of 1.7 (95% CI: 0.5, 2.9), 1.6 (95% CI: 0.4, 2.7) and 1.4 (95% CI: 0.1, 2.6) standard deviations (SD) when O(3) and NO(2) were set at the 25th, 50th, and 75th percentiles, respectively. BKMR analysis did not identify statistically significant interactions among PM(2.5), O(3), and NO(2). However, since the small sub-population might weaken the study power, additional studies (in larger sample size and other regions in the US) are in need to reinforce the current finding. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Li, Haomin AU - Li H AD - Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA. FAU - Deng, Wenying AU - Deng W AD - Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA. FAU - Small, Raphael AU - Small R AD - Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA. FAU - Schwartz, Joel AU - Schwartz J AD - Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA. FAU - Liu, Jeremiah AU - Liu J AD - Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA. FAU - Shi, Liuhua AU - Shi L AD - Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA. Electronic address: liuhua.shi@emory.edu. LA - eng GR - P30 ES019776/ES/NIEHS NIH HHS/United States GR - R01 AG074357/AG/NIA NIH HHS/United States GR - R21 ES032606/ES/NIEHS NIH HHS/United States PT - Journal Article DEP - 20210717 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) RN - 66H7ZZK23N (Ozone) RN - S7G510RUBH (Nitrogen Dioxide) SB - IM MH - Aged MH - *Air Pollutants/analysis/toxicity MH - *Air Pollution/analysis/statistics & numerical data MH - Bayes Theorem MH - Cohort Studies MH - Environmental Exposure/analysis/statistics & numerical data MH - Humans MH - Nitrogen Dioxide/analysis/toxicity MH - *Ozone/analysis/toxicity MH - Particulate Matter/analysis/toxicity PMC - PMC8578302 MID - NIHMS1726565 OTO - NOTNLM OT - Air pollution OT - Bayesian kernel machine regression (BKMR) OT - Fine particles matter (PM(2.5)) OT - Mortality OT - Nitrogen dioxide (NO(2)) OT - Ozone (O(3)) COIS- Declaration of interests The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2021/07/23 06:00 MHDA- 2021/11/11 06:00 PMCR- 2023/01/01 CRDT- 2021/07/22 20:16 PHST- 2021/02/09 00:00 [received] PHST- 2021/05/02 00:00 [revised] PHST- 2021/07/14 00:00 [accepted] PHST- 2021/07/23 06:00 [pubmed] PHST- 2021/11/11 06:00 [medline] PHST- 2021/07/22 20:16 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - S0045-6535(21)02038-5 [pii] AID - 10.1016/j.chemosphere.2021.131566 [doi] PST - ppublish SO - Chemosphere. 2022 Jan;286(Pt 1):131566. doi: 10.1016/j.chemosphere.2021.131566. Epub 2021 Jul 17.