A lower Allred score for progesterone receptor is strongly associated with a higher recurrence score of 21-gene assay in breast cancer.

Abstract

Among the 77 infiltrating breast carcinomas, we found that progesterone receptor (PR) expression was inversely associated with recurrence score (RS, p < .0001). RS is also significantly associated with tubule formation, mitosis, and luminal B subtype. The equation of RS = 17.489 + 2.071 (tubal formation) + 2.926 (mitosis) -2.408 (PR) -1.061 (HER2) + 7.051 (luminal A) + 29.172 (luminal B) predicts RS with an R² of 0.65. In conclusion, PR negativity, luminal B subtype, tubal formation, and mitosis are strongly correlated with a higher RS.

DOI: 10.3109/07357907.2010.496754
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@article{Tang2010ALA, title={A lower Allred score for progesterone receptor is strongly associated with a higher recurrence score of 21-gene assay in breast cancer.}, author={Ping Tang and Jianmin Wang and David G Hicks and Xi Wang and Linda Schiffhauer and Loralee McMahon and Qi Yang and Michelle Shayne and Alissa Huston and Kristin A Skinner and Jennifer Griggs and Gary Lyman}, journal={Cancer investigation}, year={2010}, volume={28 9}, pages={978-82} }