Table 1.
Comparison of PIK3 CA amplification or p53/p21 protein expression in High Grade Serous Ovarian Tumours
Group | PIK3CA amplification (MIP copy number) | p53/p21 IHC | ||
+/- | +/+, -/- | -/+ | ||
BRCA1 loss through mutation | 0/9*+ | 4/9 | 2/9 | 3/9 |
BRCA1 epigenetic loss | 7/8*+ | 8/9** | 1/9 | 0/9 |
No BRCA1 loss | 3/11+ | 3/12** | 5/12 | 4/12 |
* p = 0.02 for pairwise comparison based on Bonferroni-Holmes corrected Fisher exact test
** p = 0.03 for pairwise comparison based on Bonferroni-Holmes corrected Fisher exact test
+ p = 0.001 for threeway comparison based on Bonferroni-Holmes corrected Fisher exact test