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Table 2 ER and PR proportion according to tumour characteristic in both Eritrean and Sudanese women

From: Immunohistochemistry defined subtypes of breast cancer in 678 Sudanese and Eritrean women; hospitals based case series

Tumour and biomarker characteristics Eritrean Sudanese
ER positive ER negative ER positive ER negative
n (%) n (%) n (%) n (%)
Histologic type IDCNST 41 71.9% 48 81.4% 222 83.6% 270 91.5%
ILC 10 17.5% 1 1.7% 15 5.7% 3 1%
Others 6 10.5% 10 16.9% 27 10.7% 23 7.5%
Pathologic Tumour size pT1 17 29.8% 6 10.2% 46 19.2% 36 12.5%
pT2 26 45.6% 22 37.3% 107 44.6% 141 49.0%
pT3 10 17.5% 27 45.8% 50 20.8% 68 23.6%
pT4 4 7.0% 4 6.8% 37 15.4% 43 14.9%
Lymph node involvement pN0 40 70.2% 32 54.2% 104 52.0% 94 42.9%
pN1 6 10.5% 9 15.3% 37 18.5% 49 22.4%
pN2 8 14.0% 8 13.6% 36 18.0% 42 19.2%
pN3 3 5.3% 10 16.9% 23 11.5% 34 15.5%
Nottingham Grade GI 8 14.0% 2 3.4% 16 6.3% 4 1.3%
GII 30 52.6% 16 27.1% 155 61.5% 151 49.0%
GIII 19 33.3% 41 69.5% 81 32.1% 153 49.7%
PR PR negative 10 17.5% 59 100.0% 43 17.1% 303 98.4%
PR positive 47 82.5% 0 0.0% 209 82.9% 5 1.6%
HER 2 Negative (0 and 1+) 37 64.9% 29 49.2% 132 65.1% 112 52.8%
Negative (2+) 6 10.5% 10 16.9 20 9.8% 32 15.1%
Positive (3+) 14 24.6% 20 33.9% 51 25.1% 68 32.1%
  1. IDCNST invasive ductal carcinoma, no special type, ILC invasive lobular carcinoma