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The black/white mortality crossover: investigation in a community-based study.

S Wing, K G Manton, E Stallard

    Journal of Gerontology
    |January 1, 1985
    PubMed
    Summary

    The black/white mortality crossover, where Black individuals live longer at older ages, was confirmed in a community study. This finding addresses concerns about vital statistics accuracy.

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    Area of Science:

    • Demography
    • Epidemiology
    • Biostatistics

    Background:

    • The black/white mortality crossover is a persistent observation in U.S. vital statistics since 1900.
    • This phenomenon, where Black individuals exhibit lower mortality rates at older ages compared to White individuals, has faced scrutiny due to data quality concerns.

    Purpose of the Study:

    • To validate the black/white mortality crossover using a community-based study with reliable age data.
    • To investigate the impact of accurate age reporting on observed mortality patterns.

    Main Methods:

    • Analysis of 20-year all-cause mortality data from the Evans County Study.
    • Application of a Weibull model to estimate age-specific mortality rates.
    • Utilized study-obtained age data for survivors and decedents, bypassing census and death certificate reliance.

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    Main Results:

    • A statistically significant black/white mortality crossover was observed in both men (at age 73) and women (at age 85).
    • The findings were robust due to the high quality of age data collected within the study protocol.

    Conclusions:

    • The study confirms the black/white mortality crossover in a population with reliable age ascertainment.
    • This validated finding has implications for understanding chronic disease etiology and informing health care policy.