Document Detail

Cumulative and residual risks of small for gestational age neonates after changing pregnancy-smoking behaviors.
MedLine Citation:
PMID:  17372859     Owner:  NLM     Status:  MEDLINE    
This retrospective cohort study examines the relationship between changing pregnancy-smoking behaviors, from the first to the second pregnancy, on second-pregnancy rates of small for gestational age (SGA) neonates. Electronic birth records provided data on 5107 pregnant women who had two singleton births in Kansas City, MO, from 1994 to 2003. Pregnancy-smoking behavior was classified by smoking status (nonsmoker [NS] or smoker [SMK]) during the first (previous)/second (current) pregnancy: NS/NS, NS/SMK, SMK/SMK, and SMK/NS. The overall second-pregnancy SGA rate was 6.7% and varied with pregnancy-smoking behavior: 5.9%, NS/NS; 6.6%, SMK/NS; 12.5%, NS/SMK; and 12%, SMK/SMK; P < 0.001 Current pregnancy-smoking was associated with increased odds ratio (OR) of SGA; SMK/SMK (OR, 2.80; 95% confidence interval [CI], 2.00 to 3.93) versus NS/SMK (OR, 1.83; 95% CI, 1.19 to 2.82) versus SMK/NS (OR, 1.31; 95% CI, 0.65 to 2.65) versus NS/NS (OR, 1.00; 95% CI, reference). Being black (OR, 3.73; 95% CI, 2.91 to 4.79) and having medical risk factors (OR, 1.31; 95% CI, 1.09 to 1.74) also were significantly associated with a SGA neonate in second pregnancy. In conclusion, risk of delivering a SGA neonate in a current pregnancy is related to current rather than previous pregnancy-smoking. Therefore, antismoking socialization during pregnancy should focus on preventing and stopping current pregnancy-smoking, irrespective of past behavior.
Felix A Okah; Gerald L Hoff; Paul Dew; Jinwen Cai
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Publication Detail:
Type:  Journal Article     Date:  2007-03-19
Journal Detail:
Title:  American journal of perinatology     Volume:  24     ISSN:  0735-1631     ISO Abbreviation:  Am J Perinatol     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-03-28     Completed Date:  2007-05-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  191-6     Citation Subset:  IM    
Department of Pediatrics, Children's Mercy Hospitals and Clinics, Missouri 64108, USA.
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MeSH Terms
Birth Order
Health Behavior*
Infant, Newborn
Infant, Small for Gestational Age*
Parity / physiology*
Pregnancy Outcome*
Retrospective Studies
Risk Assessment
Smoking / adverse effects*

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