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Antecedents of teenage pregnancy from a 14-year follow-up study using data linkage

Gaudie, Jennifer, Mitrou, Francis, Lawrence, David, Stanley, Fiona J., Silburn, Sven R. and Zubrick, Stephen R. (2010). Antecedents of teenage pregnancy from a 14-year follow-up study using data linkage. BMC Public Health,10(1):63-73.

Document type: Journal Article
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IRMA ID 84473306xPUB45
Title Antecedents of teenage pregnancy from a 14-year follow-up study using data linkage
Author Gaudie, Jennifer
Mitrou, Francis
Lawrence, David
Stanley, Fiona J.
Silburn, Sven R.
Zubrick, Stephen R.
Journal Name BMC Public Health
Publication Date 2010
Volume Number 10
Issue Number 1
ISSN 14712458   (check CDU catalogue open catalogue search in new window)
Start Page 63
End Page 73
Total Pages 11
Place of Publication London, U.K
Publisher BioMed Central Ltd.
Abstract Background: Many western nations continue to have high rates of teenage pregnancies and births, which can result in adverse outcomes for both mother and child. This study identified possible antecedents of teenage pregnancy using linked data from administrative sources to create a 14-year follow-up from a cross-sectional survey.

Methods: Data were drawn from two sources - the 1993 Western Australian Child Health Survey (WACHS), a population-based representative sample of 2,736 children aged 4 to 16 years (1,374 girls); and administrative data relating to all their subsequent births and hospital admissions. We used weighted population estimates to examine differences between rates for teenage pregnancy, motherhood and abortion. We used Cox proportional hazards regression to model risk for teenage pregnancy.

Results: There were 155 girls aged less than 20 years at the time of their first recorded pregnancy. Teenage pregnancy was significantly associated with: family type; highest school year completed by primary carer; combined carer income; whether the primary carer was a smoker; and whether the girl herself displayed aggressive and delinquent behaviours. An age-interaction analysis on the association with aggressive and delinquent behaviours found that while girls with aggressive and delinquent behaviours who were older at the time of the survey were at highest risk of teenage pregnancy, there was elevated risk for future teenage pregnancy across all ages.

Conclusions: Our findings suggest that interventions to reduce teenage pregnancy rates could be introduced during primary school years, including those that are focused on the prevention and management of aggressive and delinquent behaviour.
Keywords antecedents of teenage pregnancy
14-year follow-up
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