Traffic-Related Air Pollution and Risk of Preterm Birth in the San Joaquin Valley of California

Padula, Amy M.; Mortimer, Kathleen M.; Tager, Ira B.; Hammond, S. Katharine; Lurmann, Frederick W.; Yang, Wei; Stevenson, David K.; Shaw, Gary M.

doi:10.1016/j.annepidem.2014.10.004

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Traffic-Related Air Pollution and Risk of Preterm Birth in the San Joaquin Valley of California

Published Date:

Dec 2014

Publisher's site:

http://dx.doi.org/10.1016/j.annepidem.2014.10.004 New Site Icon

Source:

Ann Epidemiol. 2014; 24(12):888-95e4

Language:

English

[PDF-574.71 KB]

Details:

Personal Authors:

Padula, Amy M. ; Mortimer, Kathleen M. ; Tager, Ira B. ; Hammond, S. Katharine ; Lurmann, Frederick W. ; ... More ▼

Keywords:

[+]

Pubmed ID:

25453347

Pubmed Central ID:

PMC4355392

Description:

To evaluate associations between traffic-related air pollution during pregnancy and preterm birth in births in four counties in California during years 2000 to 2006.|We used logistic regression to examine the association between the highest quartile of ambient air pollutants (carbon monoxide, nitrogen dioxide, particulate matter <10 and 2.5 μm) and traffic density during pregnancy and each of five levels of prematurity based on gestational age at birth (20-23, 24-27, 28-31, 32-33, and 34-36 weeks) versus term (37-42 weeks). We examined trimester averages and the last month and the last 6 weeks of pregnancy. Models were adjusted for birthweight, maternal age, race/ethnicity, education, prenatal care, and birth costs payment. Neighborhood socioeconomic status (SES) was evaluated as a potential effect modifier.|There were increased odds ratios (ORs) for early preterm birth for those exposed to the highest quartile of each pollutant during the second trimester and the end of pregnancy (adjusted OR, 1.4-2.8). Associations were stronger among mothers living in low SES neighborhoods (adjusted OR, 2.1-4.3). We observed exposure-response associations for multiple pollutant exposures and early preterm birth. Inverse associations during the first trimester were observed.|The results confirm associations between traffic-related air pollution and prematurity, particularly among very early preterm births and low SES neighborhoods.

Document Type:

Journal Article

Collection(s):

CDC Public Access

Funding:

6U01DD000489/DD/NCBDD CDC HHS/United States
K99 ES021470/ES/NIEHS NIH HHS/United States
R21 ES014891/ES/NIEHS NIH HHS/United States
K99ES021470/ES/NIEHS NIH HHS/United States
R21 ESO14891/PHS HHS/United States
L40 ES023163/ES/NIEHS NIH HHS/United States
P01 ES022849/ES/NIEHS NIH HHS/United States
P20 ES018173/ES/NIEHS NIH HHS/United States
P20ES018173/ES/NIEHS NIH HHS/United States
P01ES022849/ES/NIEHS NIH HHS/United States

Main Document Checksum:

[+]

Supporting Files:

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	NIHMS640759-supplement-2.docx	application/vnd.openxmlformats-officedocument.wordprocessingml.document
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