Regional and traffic-related air pollutants are associated with higher consumption of fast food and trans fat among adolescents.
Adolescent
Adolescent Behavior
Air Pollutants
/ analysis
California
Child
Diet
Diet Records
Environmental Exposure
Ethnicity
Fast Foods
/ statistics & numerical data
Follow-Up Studies
Food Preferences
Health Behavior
Humans
Longitudinal Studies
Nitrogen Dioxide
/ adverse effects
Obesity
Socioeconomic Factors
Surveys and Questionnaires
Trans Fatty Acids
/ administration & dosage
Vehicle Emissions
Journal
The American journal of clinical nutrition
ISSN: 1938-3207
Titre abrégé: Am J Clin Nutr
Pays: United States
ID NLM: 0376027
Informations de publication
Date de publication:
01 01 2019
01 01 2019
Historique:
received:
14
12
2017
accepted:
09
08
2018
pubmed:
1
1
2019
medline:
18
10
2019
entrez:
1
1
2019
Statut:
ppublish
Résumé
Air pollution exposures are novel contributors to the growing childhood obesity epidemic. One possible mechanism linking air pollution exposures and obesity is through changes in food consumption patterns. The aim of this study was to examine the longitudinal association between childhood exposure to air pollutants and changes in diet among adolescents. School-age children were enrolled in the Southern California Children's Health Study during 1993-1994 (n = 3100) and were followed for 4-8 y. Community-level regional air pollutants [e.g., nitrogen dioxide (NO2), elemental carbon (EC), and fine particles with aerodynamic diameter <2.5 µm (PM2.5)] were measured at central monitoring stations. Line dispersion modeling was used to estimate concentrations of traffic-related air pollutants based on nitrogen oxides (NOx) at participants' residential addresses. In addition, self-reported diet information was collected annually using a structured youth/adolescent food-frequency questionnaire during 1997-2001. Generalized linear mixed-effects models were used in the association analyses. Higher exposures to regional and traffic-related air pollutants were associated with intake of a high-trans-fat diet, after adjusting for confounders including socioeconomic status and access to fast food in the community. A 2-SD (12.2 parts per billion) increase in regional NO2 exposure was associated with a 34% increased risk of consuming a high-trans-fat diet compared with a low-trans-fat diet (OR: 1.34; 95% CI: 1.05, 1.72). In addition, higher exposures to acid vapor, EC, PM2.5, and non-freeway NOx were all associated with higher consumption of dietary trans fat (all P < 0.04). Notably, higher exposures to regional NO2, acid vapor, and EC were also associated with a higher consumption of fast food (all P < 0.05). Childhood exposures to regional and traffic-related air pollutants were associated with increased consumption by adolescents of trans fat and fast foods. Our results indicate that air pollution exposures may contribute to obesogenic behaviors. This study was registered at clinicaltrials.gov as NCT03379298.
Sections du résumé
Background
Air pollution exposures are novel contributors to the growing childhood obesity epidemic. One possible mechanism linking air pollution exposures and obesity is through changes in food consumption patterns.
Objective
The aim of this study was to examine the longitudinal association between childhood exposure to air pollutants and changes in diet among adolescents.
Design
School-age children were enrolled in the Southern California Children's Health Study during 1993-1994 (n = 3100) and were followed for 4-8 y. Community-level regional air pollutants [e.g., nitrogen dioxide (NO2), elemental carbon (EC), and fine particles with aerodynamic diameter <2.5 µm (PM2.5)] were measured at central monitoring stations. Line dispersion modeling was used to estimate concentrations of traffic-related air pollutants based on nitrogen oxides (NOx) at participants' residential addresses. In addition, self-reported diet information was collected annually using a structured youth/adolescent food-frequency questionnaire during 1997-2001. Generalized linear mixed-effects models were used in the association analyses.
Results
Higher exposures to regional and traffic-related air pollutants were associated with intake of a high-trans-fat diet, after adjusting for confounders including socioeconomic status and access to fast food in the community. A 2-SD (12.2 parts per billion) increase in regional NO2 exposure was associated with a 34% increased risk of consuming a high-trans-fat diet compared with a low-trans-fat diet (OR: 1.34; 95% CI: 1.05, 1.72). In addition, higher exposures to acid vapor, EC, PM2.5, and non-freeway NOx were all associated with higher consumption of dietary trans fat (all P < 0.04). Notably, higher exposures to regional NO2, acid vapor, and EC were also associated with a higher consumption of fast food (all P < 0.05).
Conclusions
Childhood exposures to regional and traffic-related air pollutants were associated with increased consumption by adolescents of trans fat and fast foods. Our results indicate that air pollution exposures may contribute to obesogenic behaviors. This study was registered at clinicaltrials.gov as NCT03379298.
Identifiants
pubmed: 30596809
pii: S0002-9165(22)03077-5
doi: 10.1093/ajcn/nqy232
pmc: PMC6358030
doi:
Substances chimiques
Air Pollutants
0
Trans Fatty Acids
0
Vehicle Emissions
0
Nitrogen Dioxide
S7G510RUBH
Banques de données
ClinicalTrials.gov
['NCT03379298']
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
99-108Subventions
Organisme : NIEHS NIH HHS
ID : K99 ES027870
Pays : United States
Organisme : NIEHS NIH HHS
ID : P30 ES007048
Pays : United States
Organisme : NIEHS NIH HHS
ID : K99 ES027853
Pays : United States
Organisme : NIEHS NIH HHS
ID : P01 ES022845
Pays : United States
Organisme : NIEHS NIH HHS
ID : R00 ES027870
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR001855
Pays : United States
Organisme : NIEHS NIH HHS
ID : R00 ES027853
Pays : United States
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