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ACS/NCI Breast Cancer Detection Demonstration Projects

B F Byrd

    Cancer
    |August 15, 1980
    PubMed
    Summary

    Early detection of breast cancer through screening projects significantly improves outcomes. These initiatives identified cancers at earlier, more treatable stages, demonstrating the value of regular examinations for women.

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    Area of Science:

    • Oncology
    • Public Health
    • Medical Screening

    Background:

    • Breast Cancer Detection Demonstration Projects initiated in 1973.
    • Data collection ongoing, with significant patient numbers accumulated.
    • Challenges exist in timely data processing.

    Purpose of the Study:

    • To evaluate the effectiveness of breast cancer screening projects.
    • To analyze the stage of cancer detection in a large cohort.
    • To assess the impact of screening on early diagnosis.

    Main Methods:

    • Analysis of data from 28 Breast Cancer Detection Demonstration Projects.
    • Review of breast biopsy results from study participants.
    • Comparison of detection rates between screening and self-examination.

    Main Results:

    • As of February 1979, 273,108 women completed initial exams; 1,011,709 total exams performed.
    • Biopsies revealed 14% invasive carcinoma, 1% carcinoma in situ, and 85% benign lesions.
    • Screening detected cancers at earlier biological stages compared to self-examination.

    Conclusions:

    • Breast cancer screening techniques enable earlier detection.
    • Early detection leads to a stage more amenable to definitive therapy.
    • Regular screening is crucial for improving breast cancer outcomes.

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