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Age at menarche based on recall information.

M L Hediger, R A Stine

    Annals of Human Biology
    |March 1, 1987
    PubMed
    Summary
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    Accurate age at menarche estimates were found for black adolescent girls using censored likelihood methods with recalled dates. This statistical approach is more efficient and less biased than traditional methods for analyzing this developmental milestone.

    Area of Science:

    • Reproductive health
    • Biostatistics
    • Adolescent medicine

    Background:

    • Accurate determination of the age at menarche is crucial for understanding female reproductive development and health.
    • Traditional statistical methods may not effectively utilize recalled data, potentially introducing bias.
    • Adolescent populations, particularly specific ethnic groups, require tailored analytical approaches.

    Purpose of the Study:

    • To evaluate the accuracy and efficiency of censored likelihood methods for estimating age at menarche.
    • To compare this methodology with existing logit and probit models using recalled data.
    • To provide a reliable estimation of the mean age at menarche in an urban population of black adolescent girls.

    Main Methods:

    • Application of censored likelihood methods incorporating recalled dates of menarche.
    Keywords:
    Age FactorsAge ReportingAmericasData CollectionData ReportingDemographic FactorsDeveloped CountriesDeveloping CountriesError SourcesEstimation TechnicsEvaluationEvaluation MethodologyMeasurementMenarcheMenstruationMethodological StudiesNorth AmericaNorthern AmericaPopulationPopulation CharacteristicsReliabilityReproductionResearch MethodologyUnited StatesUrban Population

    Related Experiment Videos

  • Analysis of data from a sample of 272 black adolescents in Philadelphia, PA.
  • Comparison of efficiency and bias with logit and probit regression models.

    • Main Results:

    • Censored likelihood methods yielded accurate age at menarche estimates.
    • The mean age at menarche was determined to be 12.44 years (SE 0.08).
    • The described methodology proved more efficient than logit or probit methods for recall data.

    Conclusions:

    • Censored likelihood methods are a superior statistical tool for estimating age at menarche from recalled data.
    • This approach mitigates bias associated with memory recall duration.
    • The findings offer valuable insights into the reproductive health of black adolescent girls.