Health & Environmental Research Online (HERO)


Print Feedback Export to File
1518997 
Journal Article 
The association of ambient air pollution and traffic exposures with selected congenital anomalies in the San Joaquin Valley of California 
Padula, AM; Tager, IB; Carmichael, SL; Hammond, SK; Lurmann, F; Shaw, GM 
2013 
Yes 
American Journal of Epidemiology
ISSN: 0002-9262
EISSN: 1476-6256 
177 
10 
1074-1085 
English 
Congenital anomalies are a leading cause of infant mortality and are important contributors to subsequent morbidity. Studies suggest associations between environmental contaminants and some anomalies, although evidence is limited. We aimed to investigate whether ambient air pollutant and traffic exposures in early gestation contribute to the risk of selected congenital anomalies in the San Joaquin Valley of California, 1997-2006. Seven exposures and 5 outcomes were included for a total of 35 investigated associations. We observed increased odds of neural tube defects when comparing the highest with the lowest quartile of exposure for several pollutants after adjusting for maternal race/ethnicity, education, and multivitamin use. The adjusted odds ratio for neural tube defects among those with the highest carbon monoxide exposure was 1.9 (95% confidence interval: 1.1, 3.2) compared with those with the lowest exposure, and there was a monotonic exposure-response across quartiles. The highest quartile of nitrogen oxide exposure was associated with neural tube defects (adjusted odds ratio = 1.8, 95% confidence interval: 1.1, 2.8). The adjusted odds ratio for the highest quartile of nitrogen dioxide exposure was 1.7 (95% confidence interval: 1.1, 2.7). Ozone was associated with decreased odds of neural tube defects and increased odds of gastroschisis among mothers aged ≥20 years. Our results extend the limited body of evidence regarding air pollution exposure and adverse birth outcomes. 
air pollution; birth outcomes; congenital anomalies; traffic 
NAAQS
• ISA-CO (2010 Final Project Page)
• ISA-NOx
     Considered
          Health Effects
     Cited
          1st Draft
               Epidemiology
          2nd Draft
          Final
          Final Cited
• ISA-Ozone (2013 Final Project Page)
• ISA-PM (2009 Final Project Page)
• ISA-PM (current)
     Peer Input Draft
          Chapter 6
     1st Draft
          Chapter 9
     Final ISA
          Chapter 9