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Being exposed to wildfire smoke increases risk of going into labor prematurely: Study - Video
Overview
Wildfire smoke is especially harmful to people's health because it contains extremely fine particles that can enter deep into the lungs and may worsen medical conditions such as asthma and heart disease. These tiny particles can also travel hundreds and sometimes thousands of miles from the wildfire’s point of origin.
The detrimental effects of poor air quality on a person’s health are well documented. In pregnant people, research has shown that poor air quality, such as smog, can lead to a number of adverse outcomes, including preterm birth (PTB), one of the leading causes of infant mortality in the United States as well as globally. PTB is defined as delivery before the 37th week of pregnancy.
Now, in a new study to be presented recently at the Society for Maternal-Fetal Medicine’s (SMFM) annual meeting, The Pregnancy Meeting-and published in the American Journal of Obstetrics & Gynecology - researchers will unveil findings that suggest that being exposed to another type of and potentially more dangerous pollutant - smoke from wildfires - increases a pregnant person’s chance of going into labor prematurely, also referred to as spontaneous preterm birth (versus one that is medically induced).
Researchers reviewed birth certificates and hospital delivery data from 2007-2012 of more than 2.5 million pregnant people in California. They compared that information with daily estimates of wildfire smoke intensity - based on satellite images - by zip code.
Data revealed that four weeks prior to conception through the first 20 weeks of pregnancy, 86 percent of pregnant individuals were exposed to at least one day of wildfire smoke, with an average exposure of 7.5 days. Results showed that wildfire smoke was significantly associated with spontaneous preterm birth, and each additional day a pregnant person was exposed to wildfire smoke slightly increased the odds of delivering an infant prematurely.
“Wildfires lead to acute and abrupt changes in air quality,” says the study’s lead author Anne Waldrop, MD, a maternal-fetal medicine subspecialist fellow at Stanford University in Palo Alto, Calif. “And some emerging evidence suggests that wildfire smoke could be worse for your health than other types of pollutants. So, even as we work to decrease other forms of air pollution, with wildfires becoming more frequent, more intense, and happening on a much larger scale, exposure to wildfire smoke is a serious public health problem, especially for vulnerable populations like pregnant people.”
Reference:
Anne Waldrop et al,MEETING SMFM 43rd Annual Pregnancy Meeting
Speakers
Isra Zaman
B.Sc Life Sciences, M.Sc Biotechnology, B.Ed