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Are preterm black infants larger than preterm white infants, or are they more misclassified?

Published online by Cambridge University Press:  31 July 2008

Somsak Suthutvoravut ,
Carol J. R. Hogue ,
Bernard Guyer ,
Marlene Anderka  and
Mark W. Oberle
Somsak Suthutvoravut
Affiliation:
Division of Family Health Services, Massachusetts Department of Public Health, USA Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA
Carol J. R. Hogue
Affiliation:
Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA
Bernard Guyer
Affiliation:
Division of Family Health Services, Massachusetts Department of Public Health, USA
Marlene Anderka
Affiliation:
Division of Family Health Services, Massachusetts Department of Public Health, USA
Mark W. Oberle
Affiliation:
Division of Reproductive Health, Center for Health Promotion and Education, Centers for Disease Control, Atlanta, USA
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Summary

In birth certificate data for Massachusetts resident births from 1978 to 1982, 12–27% of births purportedly under 31 weeks of gestation were probably misclassified, i.e. had birthweight ≥2500g. Correcting for maldistribution of births removed 34% and 23%, respectively, of black and white births with reported gestational ages <36 weeks but with implausible weights. Percentages of unknown and incomplete reports of last menstrual period were also significantly higher for blacks. After adjustment, preterm black infants weighed less than whites at each gestational age. The proportion of infants <2500g born at term (≥37 weeks gestation) was higher (although not significantly) among blacks. These findings are consistent with hypotheses that low socioeconomic status negatively affects the rate of intrauterine growth.

Type
Research Article
Information
Journal of Biosocial Science , Volume 21 , Issue 4 , October 1989 , pp. 443 - 452
Copyright
Copyright © Cambridge University Press 1989

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