Community Health Network

Ranked among the nation's most integrated healthcare systems, Community Health Network is Central Indiana's leader in providing convenient access to exceptional healthcare services, where and when patients need them—in hospitals, health pavilions, workplaces, schools and homes.

Explore Community

Close
News

News for Healthier Living

Traffic Smog Tied to Serious Birth Defects

FRIDAY, March 29 (HealthDay News) -- Women exposed to traffic-related air pollution in early pregnancy are at increased risk of having babies with certain types of serious birth defects, a new study finds.

The study included women who lived in California's San Joaquin Valley for at least the first eight weeks of their pregnancy. The valley is known as one of the smoggiest regions in the United States.

"We found an association between specific traffic-related air pollutants and neural tube defects, which are malformations of the brain and spine," study lead author Amy Padula, a postdoctoral scholar in pediatrics at the Stanford University School of Medicine, said in a university news release.

She and her colleagues focused on two types of neural tube defects: spina bifida, which is a malformation of the spinal column; and anencephaly, which is an underdeveloped or absent brain. The study included 806 women who had babies with birth defects between 1997 and 2006, and 849 women who delivered healthy babies.

After accounting for factors such as race/ethnicity and mothers' education levels and vitamin use, the researchers concluded that women exposed to the highest levels of traffic-related carbon monoxide pollution in early pregnancy were nearly twice as likely to have a baby with spina bifida or anencephaly as those with the lowest carbon monoxide exposure.

Exposure to traffic-related nitrogen oxide and nitrogen dioxide air pollution was also linked to increased risk for these birth defects. For example, women with the highest exposure to nitrogen oxide were nearly three times more likely to have a baby with anencephaly than those with the lowest exposure.

While the study found associations between traffic-related air pollution and serious birth defects, it did not establish a cause-and-effect relationship.

"If these associations are confirmed, this work offers an avenue for a potential intervention for reducing birth defects," Padula said.

The study was published online March 28 in the American Journal of Epidemiology.

"Birth defects affect one in every 33 babies, and about two-thirds of these defects are due to unknown causes," study senior author Gary Shaw, a professor of neonatal and developmental medicine, said in the news release. "When these babies are born, they bring into a family's life an amazing number of questions, many of which we can't answer."

More information

The U.S. Centers for Disease Control and Prevention has more about birth defects.

-- Robert Preidt

Health News Copyright © 2013 HealthDay. All rights reserved.

Health Day

Proud sponsors

  • Indiana Fever
  • Indianapolis Indians
  • Indiana Pacers
  • Sarah Fisher Hartman Racing
  • Indy Eleven
  • Indy Fuel

Health and wellness shopping

  • Home Health Medical online store for medical supplies and equipment
  • Wellspring Pharmacy
  • FigLeaf Boutique
  • Jasmine gift shop