Document Detail

Neonatal mortality and morbidity in vertex-vertex second twins according to mode of delivery and birth weight.
MedLine Citation:
PMID:  16307004     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the risk of neonatal mortality and morbidity in vertex-vertex second twins according to mode of delivery and birth weight. STUDY DESIGN: Data from a historical cohort study based on a twin registry in the US (1995-1997) were used. Multivariate logistic regression was used to control for maternal age, race, marital status, cigarette smoking during pregnancy, parity, medical complications, gestational age, and other confounders. RESULTS: A total of 86 041 vertex-vertex second twins were classified into two groups: second twins delivered by cesarean section after cesarean delivery of first twin (C-C) (43.0%), second twins whose co-twins delivered vaginally (V-X) (57.0%). In infants of birth weight>or=2500 g group, the risks of noncongenital anomaly-related death (adjusted odds ratio (aOR): 4.64, 95% confidence interval (95% CI): 1.90, 13.92), low Apgar score (aOR: 2.39, 95% CI: 1.43, 4.14), and ventilation use (aOR: 1.31, 95% CI: 1.18, 1.47) were higher in the V-X group compared with the C-C group. No asphyxia-related neonatal deaths occurred in C-C group, whereas the incidence of this death was 0.04% in the V-X group. CONCLUSION: The risks of neonatal mortality and morbidity are increased in vertex-vertex second twins with birth weight>or=2500 g whose co-twins delivered vaginally compared with second twins delivered by cesarean section after cesarean delivery of first twin.
Q Yang; S W Wen; Y Chen; D Krewski; K Fung Kee Fung; M Walker
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of perinatology : official journal of the California Perinatal Association     Volume:  26     ISSN:  0743-8346     ISO Abbreviation:  J Perinatol     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2005-12-15     Completed Date:  2006-05-04     Revised Date:  2006-10-30    
Medline Journal Info:
Nlm Unique ID:  8501884     Medline TA:  J Perinatol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3-10     Citation Subset:  IM    
OMNI Research Group, Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, and Ottawa Health Research Institute, Ottawa, Canada.
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MeSH Terms
Apgar Score
Asphyxia Neonatorum / mortality
Birth Weight*
Cesarean Section / mortality,  statistics & numerical data
Cohort Studies
Delivery, Obstetric / methods*,  mortality
Ethnic Groups
Infant Mortality*
Infant, Newborn
Labor Presentation*
Logistic Models
Marital Status
Maternal Age
Odds Ratio
Pregnancy, Multiple*
Retrospective Studies
Comment In:
J Perinatol. 2006 Jan 1;26(1):1-2   [PMID:  16355102 ]

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