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Pre-pregnancy depressed mood may heighten risk for premature birth
Date:6/10/2009

Researchers trying to uncover why premature birth is a growing problem in the United States and one that disproportionately affects black women have found that pre-pregnancy depressive mood appears to be a risk factor in preterm birth among both blacks and whites.

Black women, however, have nearly two times the odds of having a preterm birth compared to white women, according to Amelia Gavin, a University of Washington assistant professor of social work and lead author of a new study that appears online in the June issue of the Journal of Women's Health.

"Preterm births are one of the most significant health disparities in the United States and the overall number of these births increased from 10.6 percent in 2000 to 12.8 percent in 2005," she said.

While there appears to be some sort of link between giving birth prematurely and depressed mood, the study found no cause and effect, said Gavin, who studies health disparities. She believes the higher preterm birth rate among blacks may be the result of declining health over time among black women.

For this study, premature birth referred to any child born after less than 37 weeks of gestation. Normal gestation ranges from 38 to 42 weeks. Data for the study was drawn from a larger longitudinal investigation looking at the risks for cardiovascular disease among more than 5,000 young adults in four metropolitan areas. The Coronary Artery Risk Development in Young Adults Study also collected information about mental health and pregnancy outcomes. Between 1990 and 1996, 555 women in the larger study gave birth. These women were the subjects in the depression-premature birth study.

"At this point we can't say that pre-pregnancy depressive mood is a cause of preterm birth or how race effects this association," said Gavin. "But it seems to be a risk factor in giving birth prematurely and higher pre-pregnancy depressive mood among black women compared to white women may indirectly contribute
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Contact: Joel Schwarz
joels@u.washington.edu
206-543-2580
University of Washington
Source:Eurekalert

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