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Routine breast screening. Survival after 10.5 years follow-up
Annals of Surgery
|May 1, 1986
Summary
Routine breast cancer screening starting in 1973 demonstrated a 90.8% survival rate after 10.5 years. Early detection via mammography, especially for non-palpable tumors, significantly improved breast cancer patient survival outcomes.
Area of Science:
- Oncology
- Radiology
- Public Health
Background:
- The Breast Cancer Detection Demonstration Project (BCDDP) initiated screening in 1973.
- 8058 asymptomatic volunteers were enrolled at Georgia Baptist Medical Center.
- Cancer cases were treated by diverse surgeons with varied expertise.
Purpose of the Study:
- To evaluate the long-term survival rates of women participating in a routine breast cancer screening program.
- To identify factors influencing survival, such as age, tumor size, and detection method.
Main Methods:
- Prospective screening of 8058 asymptomatic women.
- 100% follow-up maintained for 10.5 years post-screening.
- Analysis of survival data correlated with patient demographics, tumor characteristics, and detection modality (clinical palpation vs. roentgenogram).
Main Results:
- Overall 10.5-year survival rate was 90.8%.
- Women over 50 and those with smaller lesions (≤1 cm) exhibited better survival.
- Tumors detected by roentgenogram alone (non-palpable) had superior survival rates (96.8%).
Conclusions:
- Routine breast cancer screening demonstrates significant long-term survival benefits.
- Early detection through mammography, particularly for non-palpable cancers, is associated with the best prognoses.
- Screening effectiveness is evident irrespective of treatment variations.