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Table 2 Association between ER expression and clinicopathological parameters among the study participants (n = 114)

From: Breast cancer in Ethiopia: evidence for geographic difference in the distribution of molecular subtypes in Africa

Clinico-pathological parameters ER Positive ER Negative Total p-value
Median age at Diagnosis(min-max) 42(22–75) 41(27–65)   0.284
Tumor Grade, n (%)
 I 5(10) 2(7) 7(9)  
 II 18(36) 14(50) 32(41) 0.480
 III 27(54) 12(43) 39(50)  
Stage, n (%)
 I 13(20) 6(19) 19(20)  
 II 27(42) 10(31) 37(39) 0.639
 III 22(34) 14(44) 36(37)  
 IV 2(3) 2(6) 4(4)  
Histological Type, n (%)
 Infiltrating ductal 41(60) 26(80) 67(68) 0.123
 Lobular 6(10) 0(0) 6(6)
 Others/Not classified 18(30) 7(20) 25(26)