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Changing trends in low birth weight rates among non-Hispanic black infants in the United States, 1991-2004.
MedLine Citation:
PMID:  20111989     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
We examined trends in low birth weight (LBW, <2,500 g) rates among US singleton non-Hispanic black infants between 1991 and 2004. We conducted Joinpoint regression analyses, using birth certificate data, to describe trends in LBW, moderately LBW (MLBW, 1,500-2,499 g), and very LBW (VLBW, <1,500 g) rates. We then conducted cross-sectional and binomial regression analyses to relate these trends to changes in maternal or obstetric factors. Non-Hispanic black LBW rates declined -7.35% between 1991 and 2001 and then increased +4.23% through 2004. The LBW trends were not uniform across birth weight subcategories. Among MLBW births, the 1991-2001 decease was -10.20%; the 2001-2004 increase was +5.61%. VLBW did not follow this pattern, increasing +3.84% between 1991 and 1999 and then remaining relatively stable through 2004. In adjusted models, the 1991-2001 MLBW rate decrease was associated with changes in first-trimester prenatal care, cigarette smoking, education levels, maternal foreign-born status, and pregnancy weight gain. The 2001-2004 MLBW rate increase was independent of changes in observed maternal demographic characteristics, prenatal care, and obstetric variables. Between 1991 and 2001, progress occurred in reducing MLBW rates among non-Hispanic black infants. This progress was not maintained between 2001 and 2004 nor did it occur for VLBW infants between 1991 and 2004. Observed population changes in maternal socio-demographic and health-related factors were associated with the 1991-2001 decrease, suggesting multiple risk factors need to be simultaneously addressed to reduce non-Hispanic black LBW rates.
Authors:
Cynthia Ferré; Arden Handler; Jason Hsia; Wanda Barfield; James W Collins
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Maternal and child health journal     Volume:  15     ISSN:  1573-6628     ISO Abbreviation:  Matern Child Health J     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9715672     Medline TA:  Matern Child Health J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  29-41     Citation Subset:  IM    
Affiliation:
National Center for Chronic Disease Prevention and Health Promotion, Division of Reproductive Health, Centers for Disease Control and Prevention (CDC), Atlanta, GA 30341, USA. cferre@cdc.gov
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