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Table 3 IHC markers with no internal positive controls and level of the hospital

From: Ovarian cancer: diagnostic accuracy and tumor types distribution in East Africa compared to North America

   Hospital level  
Marker N (%) Non-Tertiary (N = 72) Tertiary (N = 147) p-value
p53 (N = 204) 18 (8.8) 3 15 0.178
ARID1A (N = 208) 99 (47.6) 50 49 0.000**
MSH6 (N = 208) 15(7.2) 6 9 0.353
PMS2 (N = 206) 26 (12.6) 9 17 0.913
BRG1 (N = 201) 30 (14.9) 12 18 0.716
  1. **Majority of cases with positive internal control were from tertiary hospitals (87/109)