Lower Mitotic Activity in Screen-Detected Breast Cancers
Author Information
Author(s): Groenendijk R P R, Bult P, Tewarie L, Peer P G M, Sluis R F van der, Ruers T J M, Wobbes T
Primary Institution: University Hospital Nijmegen Sint Radboud
Hypothesis
Is the mitotic activity index (MAI) of tumours detected by screening different from those detected outside screening, and is MAI a prognostic factor for recurrence-free survival?
Conclusion
Screen-detected breast cancers have a lower mitotic activity index, indicating they are less malignant and contribute to better outcomes.
Supporting Evidence
- Screen-detected tumours have a lower mitotic activity index compared to non-screen-detected tumours.
- The MAI is correlated with other tumour characteristics.
- The MAI serves as an independent prognostic factor for recurrence-free survival.
Takeaway
Doctors found that breast cancers found during screening are less aggressive than those found without screening.
Methodology
A retrospective study of 387 breast cancer patients was conducted to compare the mitotic activity index of screen-detected and non-screen-detected tumours.
Participant Demographics
Patients treated at the University Hospital Nijmegen between January 1992 and September 1997.
Digital Object Identifier (DOI)
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