PMID- 32069764 OWN - NLM STAT- MEDLINE DCOM- 20200909 LR - 20210616 IS - 1096-0953 (Electronic) IS - 0013-9351 (Print) IS - 0013-9351 (Linking) VI - 182 DP - 2020 Mar TI - Prenatal exposure to traffic and ambient air pollution and infant weight and adiposity: The Healthy Start study. PG - 109130 LID - S0013-9351(20)30022-0 [pii] LID - 10.1016/j.envres.2020.109130 [doi] AB - BACKGROUND: Prenatal exposures to ambient air pollution and traffic have been associated with adverse birth outcomes, and may also lead to an increased risk of obesity. Obesity risk may be reflected in changes in body composition in infancy. OBJECTIVE: To estimate associations between prenatal ambient air pollution and traffic exposure, and infant weight and adiposity in a Colorado-based prospective cohort study. METHODS: Participants were 1125 mother-infant pairs with term births. Birth weight was recorded from medical records and body composition measures (fat mass, fat-free mass, and adiposity [percent fat mass]) were evaluated via air displacement plethysmography at birth (n = 951) and at ~5 months (n = 574). Maternal residential address was used to calculate distance to nearest roadway, traffic density, and ambient concentrations of fine particulate matter (PM(2.5)) and ozone (O(3)) via inverse-distance weighted interpolation of stationary monitoring data, averaged by trimester and throughout pregnancy. Adjusted linear regression models estimated associations between exposures and infant weight and body composition. RESULTS: Participants were urban residents and diverse in race/ethnicity and socioeconomic status. Average ambient air pollutant concentrations were generally low; the median, interquartile range (IQR), and range of third trimester concentrations were 7.3 mug/m(3) (IQR: 1.3, range: 3.3-12.7) for PM(2.5) and 46.3 ppb (IQR: 18.4, range: 21.7-63.2) for 8-h maximum O(3.) Overall there were few associations between traffic and air pollution exposures and infant outcomes. Third trimester O(3) was associated with greater adiposity at follow-up (2.2% per IQR, 95% CI 0.1, 4.3), and with greater rates of change in fat mass (1.8 g/day, 95% CI 0.5, 3.2) and adiposity (2.1%/100 days, 95% CI 0.4, 3.7) from birth to follow-up. CONCLUSIONS: We found limited evidence of an association between prenatal traffic and ambient air pollution exposure and infant body composition. Suggestive associations between prenatal ozone exposure and early postnatal changes in body composition merit further investigation. CI - Copyright (c) 2020 Elsevier Inc. All rights reserved. FAU - Starling, Anne P AU - Starling AP AD - Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. Electronic address: anne.starling@cuanschutz.edu. FAU - Moore, Brianna F AU - Moore BF AD - Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. FAU - Thomas, Deborah S K AU - Thomas DSK AD - Department of Geography and Earth Sciences, University of North Carolina Charlotte, NC, USA. FAU - Peel, Jennifer L AU - Peel JL AD - Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA. FAU - Zhang, Weiming AU - Zhang W AD - Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. FAU - Adgate, John L AU - Adgate JL AD - Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. FAU - Magzamen, Sheryl AU - Magzamen S AD - Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA; Department of Epidemiology, Colorado School of Public Health, Colorado State University, Fort Collins, CO, USA. FAU - Martenies, Sheena E AU - Martenies SE AD - Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA. FAU - Allshouse, William B AU - Allshouse WB AD - Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. FAU - Dabelea, Dana AU - Dabelea D AD - Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Pediatrics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. LA - eng GR - P30 DK048520/DK/NIDDK NIH HHS/United States GR - R00 ES025817/ES/NIEHS NIH HHS/United States GR - R01 DK076648/DK/NIDDK NIH HHS/United States GR - UH3 OD023248/OD/NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20200110 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - 0 (Air Pollutants) RN - 0 (Particulate Matter) RN - 0 (Vehicle Emissions) SB - IM MH - *Adiposity MH - *Air Pollutants/toxicity MH - *Air Pollution MH - *Birth Weight MH - Female MH - Humans MH - Infant MH - Male MH - Obesity MH - Particulate Matter MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Prospective Studies MH - *Vehicle Emissions/toxicity PMC - PMC7394733 MID - NIHMS1608651 OTO - NOTNLM OT - Adiposity OT - Air pollution OT - Infant OT - Pregnancy OT - Traffic COIS- Declaration of competing interest The authors state that they have no competing financial interests related to this work. EDAT- 2020/02/20 06:00 MHDA- 2020/09/10 06:00 PMCR- 2021/03/01 CRDT- 2020/02/20 06:00 PHST- 2019/10/04 00:00 [received] PHST- 2020/01/08 00:00 [revised] PHST- 2020/01/09 00:00 [accepted] PHST- 2020/02/20 06:00 [entrez] PHST- 2020/02/20 06:00 [pubmed] PHST- 2020/09/10 06:00 [medline] PHST- 2021/03/01 00:00 [pmc-release] AID - S0013-9351(20)30022-0 [pii] AID - 10.1016/j.envres.2020.109130 [doi] PST - ppublish SO - Environ Res. 2020 Mar;182:109130. doi: 10.1016/j.envres.2020.109130. Epub 2020 Jan 10.