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Adolescent pregnancy in Tasmania.

J F Correy, P C Kwok, N M Newman

    The Medical Journal of Australia
    |August 4, 1984
    PubMed
    Summary

    Adolescent pregnancies show poorer outcomes, including lower birth weight and higher perinatal mortality. However, these risks diminish when adolescent primiparas are compared to adult primiparas, suggesting social factors, not biological age, are key.

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    Area of Science:

    • Obstetrics
    • Perinatology
    • Adolescent Medicine

    Background:

    • Teenage pregnancy presents unique challenges in obstetric care.
    • Previous studies indicate potential risks associated with adolescent pregnancies.

    Purpose of the Study:

    • To compare obstetric outcomes between adolescent mothers (<18 years) and the general obstetric population.
    • To investigate the influence of biological age versus socioeconomic factors on adolescent pregnancy outcomes.

    Main Methods:

    • Retrospective analysis of 1719 pregnancies in mothers under 18 years.
    • Comparison with a control group of adult mothers (18-34 years), matched for parity, marital status, and socioeconomic class.
    • Statistical analysis of key obstetric parameters including birth weight, gestational age, Apgar scores, perinatal mortality, and pregnancy-induced hypertension.

    Main Results:

    • Adolescent pregnancies exhibited significantly poorer outcomes: lower mean birth weight, higher prevalence of low birth weight (<2500g), shorter gestation (<28 weeks), lower Apgar scores, increased perinatal mortality, and higher rates of hypertension.
    • When comparing primiparous adolescents to primiparous adults, these differences were less pronounced.
    • Matching for marital status and socioeconomic class eliminated significant outcome disparities between adolescent and adult primiparas.

    Conclusions:

    • Biological age alone does not appear to increase pregnancy risk.
    • The higher incidence of adverse obstetric outcomes in adolescents is primarily attributed to a greater prevalence of associated risk factors, such as primiparity, single marital status, lower socioeconomic class, and smoking.
    • Targeting and mitigating these socioeconomic and behavioral risk factors are crucial for improving adolescent pregnancy outcomes.

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