PMID- 34375941 OWN - NLM STAT- MEDLINE DCOM- 20211018 LR - 20220531 IS - 1873-6750 (Electronic) IS - 0160-4120 (Linking) VI - 157 DP - 2021 Dec TI - Long-term exposure to black carbon and mortality: A 28-year follow-up of the GAZEL cohort. PG - 106805 LID - S0160-4120(21)00430-X [pii] LID - 10.1016/j.envint.2021.106805 [doi] AB - BACKGROUND: The current evidence on health effects of long-term exposure to outdoor airborne black carbon (BC) exposure remains scarce. OBJECTIVES: To examine the association between long-term exposure to BC and mortality in a large population-based French cohort, with 28 years of follow-up. METHODS: Data from the GAZEL cohort were collected between 1989 and 2017. Land use regression model with temporal extrapolation wa used to estimate yearly BC and PM(2.5) exposure at the residential addresses from 1989 until censoring for 19,906 participants. Time-varying Cox models with attained age as time-scale was used to estimate the associations between BC and all-cause and cardiovascular mortality, after adjusting for individual and area-level covariates. To handle confounding by PM(2.5), we used the residual of BC regressed on PM(2.5) as an alternate exposure variable. For all-cause mortality, we also examined effect modification by sex, smoking status, BMI and fruit/vegetable intake. RESULTS: The median of 20-year moving average of BC exposure was 2.02 10(-5)/m in study population. We found significant associations between BC exposure and all-cause mortality (n = 2357) using both 20-year moving average of BC and residual of BC, with corresponding hazard ratios (HR) of 1.14 (95 %CI: 1.07-1.22) and 1.17 (95 %CI: 1.10-1.24) for an inter-quartile range (IQR) increase (0.86 10(-5)/m for BC and 0.57 10(-5)/m for residual of BC). We found a similar association between BC and cardiovascular mortality (n = 277) with a HR of 1.15 (95 %CI: 0.95-1.38). The dose-response relationship between BC and all-cause mortality was monotonic but nonlinear with a steeper slope at high BC levels. In addition, the effect of BC was higher among never-smokers and among those having fruit/vegetables less than twice a week. CONCLUSIONS: There was a positive association between long-term exposure to BC and increased mortality risk, reinforcing the emerging evidence that BC is a harmful component of PM(2.5). CI - Copyright (c) 2021 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Yang, Jun AU - Yang J AD - Univ. Rennes, Inserm, EHESP, Irset (Institut de recherche en sante, environnement et travail) - UMR_S 1085, F-35000 Rennes, France; Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China. FAU - Sakhvidi, Mohammad Javad Zare AU - Sakhvidi MJZ AD - Univ. Rennes, Inserm, EHESP, Irset (Institut de recherche en sante, environnement et travail) - UMR_S 1085, F-35000 Rennes, France. FAU - de Hoogh, Kees AU - de Hoogh K AD - Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland. FAU - Vienneau, Danielle AU - Vienneau D AD - Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland. FAU - Siemiatyck, Jack AU - Siemiatyck J AD - CRCHUM (Centre de recherche du CHUM), Montreal, Quebec, Canada. FAU - Zins, Marie AU - Zins M AD - Universite de Paris, Unite "Cohortes en Population" INSERM, Universite Paris Saclay, UVSQ, UMS 011 Paris, France. FAU - Goldberg, Marcel AU - Goldberg M AD - Universite de Paris, Unite "Cohortes en Population" INSERM, Universite Paris Saclay, UVSQ, UMS 011 Paris, France. FAU - Chen, Jie AU - Chen J AD - Institute for Risk Assessment Sciences, Utrecht University, the Netherlands. FAU - Lequy, Emeline AU - Lequy E AD - CRCHUM (Centre de recherche du CHUM), Montreal, Quebec, Canada; Universite de Paris, Unite "Cohortes en Population" INSERM, Universite Paris Saclay, UVSQ, UMS 011 Paris, France. FAU - Jacquemin, Benedicte AU - Jacquemin B AD - Univ. Rennes, Inserm, EHESP, Irset (Institut de recherche en sante, environnement et travail) - UMR_S 1085, F-35000 Rennes, France. Electronic address: benedicte.jacquemin@inserm.fr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210807 PL - Netherlands TA - Environ Int JT - Environment international JID - 7807270 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) RN - 7440-44-0 (Carbon) SB - IM MH - *Air Pollutants/analysis/toxicity MH - *Air Pollution/analysis/statistics & numerical data MH - Carbon MH - Environmental Exposure/analysis/statistics & numerical data MH - Follow-Up Studies MH - Humans MH - Particulate Matter/analysis/toxicity OTO - NOTNLM OT - Air pollutant OT - Black carbon OT - Cohort study OT - Long-term exposure OT - Mortality EDAT- 2021/08/11 06:00 MHDA- 2021/10/21 06:00 CRDT- 2021/08/10 20:24 PHST- 2021/04/01 00:00 [received] PHST- 2021/06/21 00:00 [revised] PHST- 2021/07/27 00:00 [accepted] PHST- 2021/08/11 06:00 [pubmed] PHST- 2021/10/21 06:00 [medline] PHST- 2021/08/10 20:24 [entrez] AID - S0160-4120(21)00430-X [pii] AID - 10.1016/j.envint.2021.106805 [doi] PST - ppublish SO - Environ Int. 2021 Dec;157:106805. doi: 10.1016/j.envint.2021.106805. Epub 2021 Aug 7.