Racial residential segregation and low birth weight in Michigan's metropolitan areas
- PMID: 21778487
- PMCID: PMC3154240
- DOI: 10.2105/AJPH.2011.300152
Racial residential segregation and low birth weight in Michigan's metropolitan areas
Abstract
Objectives: We examined the influence of racial residential segregation, independent of neighborhood economic factors, on the overall and specific etiological risks of low birth weight.
Methods: We geocoded all singleton births in Michigan metropolitan areas during 2000 to census tracts. We used hierarchical generalized linear models to investigate the association between low birth weight (< 2500 g) and neighborhood-level economic and racial segregation, controlling for individual and neighborhood characteristics. We analyzed competing risks of the 2 etiologies of low birth weight: intrauterine growth restriction and preterm birth.
Results: Living in a Black segregated area was associated with increased odds (odds ratio [OR] = 1.15; 95% confidence interval [CI] = 1.03, 1.29; P < .05) of low birth weight after adjusting for individual- and tract-level measures. The analysis suggested that the association between low birth weight and racial segregation was attributable primarily to increased risk of intrauterine growth restriction (OR = 1.19; 95% CI = 1.03, 1.37; P < .05).
Conclusions: Odds of low birth weight are higher in racially segregated Black neighborhoods in Michigan's metropolitan areas, independent of economic factors. The association appears to operate through intrauterine growth restriction rather than preterm birth.
Figures
References
-
- Hoyert DL, Freedman MA, Strobino DM, Guyer B. Annual summary of vital statistics: 2000. Pediatrics. 2001;108(6):1241–1255 - PubMed
-
- Martin JA, Kung H, Mathews T, et al. Annual summary of vital statistics: 2006. Pediatrics. 2008;121(4):788–801 - PubMed
-
- Collins JW, Jr, David RJ. Racial disparity in low birth weight and infant mortality. Clin Perinatol. 2009;36(1):63–73 - PubMed
-
- Baker JL, Olsen LW, Sørensen TIA. Weight at birth and all-cause mortality in adulthood. Epidemiology. 2008;19(2):197–203 - PubMed
-
- Saigal S, Doyle LW. An overview of mortality and sequelae of preterm birth from infancy to adulthood. Lancet. 2008;371(9608):261–269 - PubMed
Publication types
MeSH terms
Grants and funding
LinkOut - more resources
Full Text Sources
