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Table 1 Clinicopathological characteristics according to the subtypes

From: Pattern of distant recurrence according to the molecular subtypes in Korean women with breast cancer

  Luminal-A, n = 175(%) Luminal-HER2, n = 34(%) HER2-enriched, n = 41(%) TNBC, n = 62(%) P
Age      0.07
   ≤ 35 11(6.3) 7(20.6) 3(7.1) 6(9.7)  
   > 35 164(93.7) 27(79.4) 39(92.9) 56(90.3)  
Menopausal state, n = 299      0.07
   Premenopause 102 18 17 27  
   Menopause 65 16 24 30  
Tumor size, n = 309      0.73
   ≤ 5 cm 158(90.8) 31(91.2) 35(85.4) 55(91.7)  
   > 5 cm 16(9.2) 3(8.8) 6(14.6) 5(8.3)  
Nodal status, n = 306      0.59
   Negative 95(54.9) 15(44.1) 25(59.5) 31(54.4)  
   Positive 78(45.1) 19(55.9) 17(40.5) 26(45.6)  
Operation type      0.13
   BCS 22(12.6) 1(2.9) 2(4.8) 3(4.8)  
   Mastectomy 153(87.4) 33(97.1) 40(95.2) 59(95.2)  
Lymphovascular invasion      0.42
   Absent 90(51.4) 17(50.0) 23(54.8) 25(40.3)  
   Present 85(48.6) 17(50.0) 19(45.2) 37(59.7)  
Systemic therapy, n = 311      0.26
   None 3(1.7) 1(2.9) 0 2(3.3)  
   Done 172(98.3) 33(97.1) 41(100) 59(96.7)  
Radiation, n = 309      0.36
   None 148(85.1) 30(90.9) 37(88.1) 56(93.3)  
   Done 26(14.9) 3(9.1) 5(11.9) 4(6.7)  
Overall survival events 31(17.7) 11(32.4) 13(31.0) 15(24.2) 0.11