Document Detail

Preterm birth subtypes among blacks and whites.
MedLine Citation:
PMID:  1391135     Owner:  NLM     Status:  MEDLINE    
The differences in preterm birth between blacks and whites are poorly understood. Our study examined subtypes of moderately preterm delivery (34-36 completed weeks of gestation) and very preterm delivery (20-33 weeks) in blacks and whites using North Carolina birth certificate data for 1988-1989. We divided the causes of preterm birth into three categories: preterm premature rupture of the membranes, indication of pregnancy complication, and idiopathic preterm deliveries. The overall prevalence of preterm birth was 8.0% and 16.7% for whites and blacks, respectively. The entire gestational age distribution of blacks was shifted to earlier ages relative to whites. More highly educated blacks still had higher risks of moderately and very preterm deliveries than less educated whites. Multivariate analysis, controlling for other factors, showed that blacks had 3.3, 2.5, and 3.5 times the risk of whites to have preterm premature rupture of the membranes, complication-related, and idiopathic delivery, respectively, among very preterm births, and 1.6, 1.9, and 2.0 times the risk of whites for moderately preterm births of the same three types.
J Zhang; D A Savitz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Epidemiology (Cambridge, Mass.)     Volume:  3     ISSN:  1044-3983     ISO Abbreviation:  Epidemiology     Publication Date:  1992 Sep 
Date Detail:
Created Date:  1992-11-06     Completed Date:  1992-11-06     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  9009644     Medline TA:  Epidemiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  428-33     Citation Subset:  IM    
Department of Epidemiology, University of North Carolina, Chapel Hill 27599-7400.
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MeSH Terms
African Continental Ancestry Group*
Educational Status
European Continental Ancestry Group
Fetal Membranes, Premature Rupture / epidemiology
Gestational Age
Infant, Newborn
Infant, Premature*
Maternal Age
North Carolina / epidemiology
Obstetric Labor, Premature / ethnology*
Pregnancy Complications / epidemiology
Smoking / epidemiology

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