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Related Experiment Videos

Comparison of epidemiologic data from multiple sources.

R I Horwitz

    Journal of Chronic Diseases
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Comparing medical records and interviews for breast cancer patients revealed data agreement varies by information type. Inherent clinical details showed high accuracy, while pharmaceutical data exhibited significant discrepancies.

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    Area of Science:

    • Epidemiology
    • Medical Record Analysis
    • Cancer Research

    Background:

    • Accurate data collection is crucial for epidemiological studies, particularly in chronic diseases like breast cancer.
    • Discrepancies between medical records and patient interviews can impact study validity.
    • Understanding agreement levels for different data types is essential for reliable case-control studies.

    Purpose of the Study:

    • To compare the agreement between epidemiologic data from medical records and patient interviews.
    • To assess data consistency for clinical versus pharmaceutical features in a breast cancer case-control study.
    • To evaluate the impact of data pooling strategies on exposure estimates.

    Main Methods:

    • A case-control study involving 462 subjects with breast cancer.

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  • Comparison of data collected via medical records and direct interviews.
  • Analysis of agreement for clinical (e.g., hysterectomy, family history) and pharmaceutical (e.g., exogenous estrogen use) variables.

    • Main Results:

    • Excellent agreement was found for inherent clinical features like gynecologic surgery and family history of breast cancer.
    • Considerable variability in agreement was observed for pharmaceutical data, including history of lactation and exogenous estrogen use.
    • Pooling data from both sources led to different exposure proportion estimates compared to individual sources.

    Conclusions:

    • The agreement between medical records and interviews is variable, depending on the data type and handling of indeterminate responses.
    • Clinical data generally shows higher agreement than pharmaceutical data in breast cancer case-control studies.
    • Pooling data sources requires careful consideration as it can alter exposure estimates.