Document Detail

Teenage pregnancies and risk of late fetal death and infant mortality.
MedLine Citation:
PMID:  10426676     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To estimate the effect of low maternal age on late fetal death and infant mortality and to estimate the extent of any increase in infant mortality attributable to higher rates of preterm birth among teenagers. DESIGN: Population-based cohort study. SETTING: Births recorded in the nationwide Swedish Medical Birth Registry. POPULATION: All single births to nulliparous women aged 13-24 years (n = 320,174) during 1973-1989. METHODS: Using information recorded in the medical birth registry, linked to a national education register, the effect of low maternal age on adverse outcomes was estimated using logistic regression analysis. MAIN OUTCOME MEASURES: Late fetal death, neonatal and postneonatal mortality and preterm birth. RESULTS: Compared with mothers aged 20-24 years, adjusted risks of neonatal and postneonatal mortality were significantly increased among mothers aged 13-15 years (odds ratios = 2.7 and 2.6, respectively) and among those aged 16-17 years (odds ratios = 1.4 and 2.0, respectively), while mothers aged 18-19 years had a significant increase in risk of postneonatal mortality only (odds ratio = 1.4). Rates of very preterm birth (< or = 32 weeks), according to maternal age, were: 13-15 years, 5.9%; 16-17 years, 2.5%; 18-19 years, 1.7%; and 20-24 years, 1.1%. The high rates of very preterm birth among young teenagers almost entirely explained the increased risk of neonatal mortality in this group. CONCLUSIONS: The increased risks of neonatal and postneonatal mortality among young teenagers may be related to biological immaturity. The increase in risk of neonatal mortality is largely explained by increased rates of very preterm birth.
P O Olausson; S Cnattingius; B Haglund
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  British journal of obstetrics and gynaecology     Volume:  106     ISSN:  0306-5456     ISO Abbreviation:  Br J Obstet Gynaecol     Publication Date:  1999 Feb 
Date Detail:
Created Date:  1999-08-11     Completed Date:  1999-08-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7503752     Medline TA:  Br J Obstet Gynaecol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  116-21     Citation Subset:  AIM; IM    
Centre for Epidemiology, National Board of Health and Welfare, Stockholm, Sweden.
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MeSH Terms
Cohort Studies
Educational Status
Fetal Death / epidemiology*
Infant Mortality*
Infant, Newborn
Infant, Premature
Maternal Age
Pregnancy in Adolescence*
Risk Factors
Sweden / epidemiology
Comment In:
Br J Obstet Gynaecol. 1999 Nov;106(11):1230   [PMID:  10549977 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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