Document Detail

Preterm births, low birth weight, and intrauterine growth restriction in three birth cohorts in Southern Brazil: 1982, 1993 and 2004.
MedLine Citation:
PMID:  18797714     Owner:  NLM     Status:  MEDLINE    
Three birth cohort studies from 1982, 1993 and 2004, in Pelotas, Southern Brazil provided the data for this study of trends in preterm births, low birth weight, and intrauterine growth restriction. We found a slight increase in the period in the low birth weight prevalence from 9% to 10%. Intrauterine growth restriction decreased from 14.8% in 1982 to 9.4% in 1993, and subsequently increased to 12% in 2004, whereas preterm births increased markedly, from 6.3% in 1982 to 14.7% in 2004. This striking increment could not be explained by changes in maternal characteristics, as mothers in 2004 were heavier, smoked less during pregnancy and attended antenatal clinics more often and earlier than those of previous cohorts. However, pregnancy interruptions due either to caesarean sections or to inductions significantly increased. Caesareans increased from 28% in 1982 to 45% in 2004, and inductions were 2.5% in 1982 but 11.1% in 2004. The increase in preterms could be partially explained by the growing number of pregnancy interruptions, but there must be other causes since this increase was also observed among babies born by non-induced vaginal deliveries.
Fernando C Barros; Cesar G Victora; Alicia Matijasevich; Iná S Santos; Bernardo L Horta; Mariângela F Silveira; Aluísio J D Barros
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cadernos de saúde pública     Volume:  24 Suppl 3     ISSN:  1678-4464     ISO Abbreviation:  Cad Saude Publica     Publication Date:  2008  
Date Detail:
Created Date:  2008-09-17     Completed Date:  2009-02-25     Revised Date:  2013-03-18    
Medline Journal Info:
Nlm Unique ID:  8901573     Medline TA:  Cad Saude Publica     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  S390-8     Citation Subset:  IM    
Programa de Pós-graduação em Saúde e Comportamento, Universidade Católica de Pelotas, Pelotas, Brasil.
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MeSH Terms
Birth Weight*
Brazil / epidemiology
Cesarean Section / statistics & numerical data
Cohort Studies
Delivery, Obstetric / statistics & numerical data
Family Characteristics
Fetal Growth Retardation / epidemiology*
Gestational Age
Infant, Low Birth Weight*
Infant, Newborn
Infant, Premature
Premature Birth / epidemiology*
Risk Factors

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