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Uncertain gestation and pregnancy outcome.

T H Chimbira

    The Central African Journal of Medicine
    |February 1, 1989
    PubMed
    Summary

    Pregnancy outcomes were worse for women with unknown gestation dates, showing higher rates of Cesarean sections, stillbirths, and neonatal mortality. Factors like education and maternal age impact recall of last menstrual period, affecting accurate dating.

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    Area of Science:

    • Obstetrics and Gynecology
    • Maternal-Fetal Medicine
    • Public Health

    Background:

    • Accurate dating of pregnancy is crucial for optimal maternal and fetal outcomes.
    • Uncertainty in gestational dating can arise from various socioeconomic and demographic factors.
    • Traditional methods of dating rely on the last menstrual period (LMP), which can be unreliable.

    Purpose of the Study:

    • To compare pregnancy outcomes between women with known and uncertain gestation dating.
    • To identify factors influencing a woman's ability to accurately recall her LMP.
    • To highlight the implications of inaccurate gestational dating on adverse pregnancy events.

    Main Methods:

    • Retrospective cohort study comparing 214 women with uncertain/unknown gestation to 786 women with known dates.
    Keywords:
    AfricaAfrica South Of The SaharaAge FactorsComparative StudiesDeliveryDelivery Of Health CareDemographic FactorsDeveloping CountriesEastern AfricaEconomic FactorsEducational StatusEnglish Speaking AfricaFetusGeographic FactorsGestational AgeHealthHealth FacilitiesHospitalsKnowledgeMaternal AgeMenstrual CycleMenstruationParental AgePopulationPopulation CharacteristicsPregnancyPregnancy OutcomesReproductionResearch MethodologySocioeconomic FactorsSocioeconomic StatusStudiesZimbabwe

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  • Analysis of adverse pregnancy outcomes including Cesarean section, instrumental delivery, stillbirth, and neonatal mortality.
  • Statistical analysis to determine factors influencing LMP recall and their significance (P < 0.05).

    • Main Results:

    • Significantly higher rates of Cesarean section, forceps/vacuum delivery, stillbirth, and neonatal mortality in the uncertain gestation group (P < 0.005).
    • Maternal age, education level (of both partners), gestation at booking, and area of upbringing significantly influenced LMP recall (P < 0.05).
    • Ultrasound scanning was not utilized for determining expected delivery dates in this cohort.

    Conclusions:

    • Uncertainty in gestational dating is associated with significantly poorer pregnancy outcomes.
    • Socioeconomic and demographic factors play a role in the reliability of LMP recall.
    • Improved methods for accurate pregnancy dating, potentially including routine ultrasound, are warranted to reduce adverse outcomes.