Objective-This study examined the role of psychosocial stress in racial differences in birth outcomes.Design-Maternal health, sociodemographic factors, and 3 forms of stress (general stress, pregnancy stress, and perceived racism) were assessed prospectively in a sample of 51 African American and 73 non-Hispanic White pregnant women.Main Outcome Measures-The outcomes of interest were birth weight and gestational age at delivery. Only predictive models of birth weight were tested as the groups did not differ significantly in gestational age.Results-Perceived racism and indicators of general stress were correlated with birth weight and tested in regression analyses. In the sample as a whole, lifetime and childhood indicators of perceived racism predicted birth weight and attenuated racial differences, independent of medical and sociodemographic control variables. Models within each race group showed that perceived racism was a significant predictor of birth weight in African Americans, but not in non-Hispanic Whites.Conclusions-These findings provide further evidence that racism may play an important role in birth outcome disparities, and they are among the first to indicate the significance of psychosocial factors that occur early in the life course for these specific health outcomes. Keywords stress; racism; pregnancy; birth weight; health disparities African Americans are twice as likely as non-Hispanic Whites, the most common referent group, to die before their first birthday (Mathews, Menacker, & MacDorman, 2004). In this Correspondence concerning this article should be addressed to Tyan Parker Dominguez, School of Social Work, SWC 224, University of Southern California, Los Angeles, CA 90089-0411, or Christine Dunkel-Schetter, Department of Psychology, 405 Hilgard Avenue, University of California, Los Angeles, CA 90095-1563. tyanpark@usc.edu or dunkel@psych.ucla.edu.
NIH Public Access Author ManuscriptHealth Psychol. Author manuscript; available in PMC 2010 May 12.
Published in final edited form as:Health Psychol. 2008 March ; 27(2): 194-203. doi:10.1037/0278-6133.27.2.194.
NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscript country, low birth weight (LBW; <2,500 g) and preterm delivery (PTD; <37 weeks) are leading causes of infant death in the overall population, behind congenital anomalies, and the leading causes of death for African American infants (Mathews et al., 2004). Compared with White infants, African American infants have two times the rate of LBW and PTD, and three times the rate of very low birth weight (<1,500 g) and very preterm delivery (<32 weeks) (Martin et al., 2005). These poorer birth outcomes have serious implications not only for infant survival, but also for childhood growth and development (e.g., Botting, Powls, Cooke, & Marlow, 1998) and some important health outcomes in adulthood (e.g., Rich-Edwards et al, 1997). Thus, understanding and eventually eliminating racial disparities in adverse birth outcomes is a major public health priority in the United ...