Delivery outcomes for nulliparous women at the extremes of maternal age - a cohort study.

Hdl Handle:
http://hdl.handle.net/10147/295995
Title:
Delivery outcomes for nulliparous women at the extremes of maternal age - a cohort study.
Authors:
Vaughan, DA; Cleary, Bj; Murphy, Dj
Affiliation:
Coombe Women and Infants University Hospital, Dublin, Ireland.
Citation:
Delivery outcomes for nulliparous women at the extremes of maternal age - a cohort study. 2013: BJOG
Journal:
BJOG : an international journal of obstetrics and gynaecology
Issue Date:
12-Jun-2013
URI:
http://hdl.handle.net/10147/295995
DOI:
10.1111/1471-0528.12311
PubMed ID:
23755916
Abstract:
OBJECTIVE: To examine the associations between extremes of maternal age (≤17 years or ≥40 years) and delivery outcomes. DESIGN: Retrospective cohort study. SETTING: Urban maternity hospital in Ireland. POPULATION: A total of 36 916 nulliparous women with singleton pregnancies who delivered between 2000 and 2011. METHODS: The study population was subdivided into five maternal age groups based on age at first booking visit: ≤17 years, 18-19 years, 20-34 years, 35-39 years and women aged ≥40 years. Logistic regression analyses were performed to examine the associations between extremes of maternal age and delivery outcomes, adjusting for potential confounding factors. MAIN OUTCOME MEASURES: Preterm birth, admission to the neonatal unit, congenital anomaly, caesarean section. RESULTS: Compared with maternal age 20-34 years, age ≤17 years was a risk factor for preterm birth (adjusted odds ratio [adjOR] 1.83, 95% confidence interval [95% CI] 1.33-2.52). Babies born to mothers ≥40 years were more likely to require admission to the neonatal unit (adjOR 1.35, 95% CI 1.06-1.72) and to have a congenital anomaly (adjOR 1.71, 95% CI 1.07-2.76). The overall caesarean section rate in nulliparous women was 23.9% with marked differences at the extremes of maternal age; 10.7% at age ≤17 years (adjOR 0.46, 95% CI 0.34-0.62) and 54.4% at age ≥40 years (adjOR 3.24, 95% CI 2.67-3.94). CONCLUSIONS: Extremes of maternal age need to be recognised as risk factors for adverse delivery outcomes. Low caesarean section rates in younger women suggest that a reduction in overall caesarean section rates may be possible.
Item Type:
Article
Language:
en
ISSN:
1471-0528

Full metadata record

DC FieldValue Language
dc.contributor.authorVaughan, DAen_GB
dc.contributor.authorCleary, Bjen_GB
dc.contributor.authorMurphy, Djen_GB
dc.date.accessioned2013-07-15T10:02:57Z-
dc.date.available2013-07-15T10:02:57Z-
dc.date.issued2013-06-12-
dc.identifier.citationDelivery outcomes for nulliparous women at the extremes of maternal age - a cohort study. 2013: BJOGen_GB
dc.identifier.issn1471-0528-
dc.identifier.pmid23755916-
dc.identifier.doi10.1111/1471-0528.12311-
dc.identifier.urihttp://hdl.handle.net/10147/295995-
dc.description.abstractOBJECTIVE: To examine the associations between extremes of maternal age (≤17 years or ≥40 years) and delivery outcomes. DESIGN: Retrospective cohort study. SETTING: Urban maternity hospital in Ireland. POPULATION: A total of 36 916 nulliparous women with singleton pregnancies who delivered between 2000 and 2011. METHODS: The study population was subdivided into five maternal age groups based on age at first booking visit: ≤17 years, 18-19 years, 20-34 years, 35-39 years and women aged ≥40 years. Logistic regression analyses were performed to examine the associations between extremes of maternal age and delivery outcomes, adjusting for potential confounding factors. MAIN OUTCOME MEASURES: Preterm birth, admission to the neonatal unit, congenital anomaly, caesarean section. RESULTS: Compared with maternal age 20-34 years, age ≤17 years was a risk factor for preterm birth (adjusted odds ratio [adjOR] 1.83, 95% confidence interval [95% CI] 1.33-2.52). Babies born to mothers ≥40 years were more likely to require admission to the neonatal unit (adjOR 1.35, 95% CI 1.06-1.72) and to have a congenital anomaly (adjOR 1.71, 95% CI 1.07-2.76). The overall caesarean section rate in nulliparous women was 23.9% with marked differences at the extremes of maternal age; 10.7% at age ≤17 years (adjOR 0.46, 95% CI 0.34-0.62) and 54.4% at age ≥40 years (adjOR 3.24, 95% CI 2.67-3.94). CONCLUSIONS: Extremes of maternal age need to be recognised as risk factors for adverse delivery outcomes. Low caesarean section rates in younger women suggest that a reduction in overall caesarean section rates may be possible.en_GB
dc.languageENG-
dc.language.isoenen
dc.rightsArchived with thanks to BJOG : an international journal of obstetrics and gynaecologyen_GB
dc.titleDelivery outcomes for nulliparous women at the extremes of maternal age - a cohort study.en_GB
dc.typeArticleen
dc.contributor.departmentCoombe Women and Infants University Hospital, Dublin, Ireland.en_GB
dc.identifier.journalBJOG : an international journal of obstetrics and gynaecologyen_GB
dc.description.fundingOtheren
dc.description.provinceLeinsteren
dc.description.peer-reviewpeer-reviewen

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