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Table 3 Patient characteristics by time to diagnosis of recurrence of breast cancer in luminal subgroup

From: Factors that predict recurrence later than 5 years after initial treatment in operable breast cancer

  Time to recurrence Total (n = 206) p
<5 years (n = 101) ≥5 years (n = 105)
Mean age, years (SD) 49.17 (10.5) 48.45 (10.6) 206 0.562
Menopausal status Pre/peri-menopause 74 (73.2) 71 (67.6) 145 0.377
  Postmenopause 27 (26.8) 34 (32.4) 61  
T stage ≤2 cm 19 (18.9) 42 (40.0) 61 0.001
>2 cm 82 (81.1) 63 (60.0) 145
N stage Node-negative 29 (28.7) 59 (56.2) 88 <0.001
Node-positive 72 (71.3) 46 (43.8) 118
Grade (n = 174) 1 9 (9.4) 15 (18.9) 24 0.019
2 59 (62.1) 51 (64.5) 110
3 27 (28.5) 13 (16.6) 40
Lymphovascular invasion (n = 176) Yes 59 (62.1) 42 (51.8) 101 0.172
No 36 (37.9) 39 (48.2) 75
ER titer (n = 156) High (≥50 %) 67 (81.7) 72 (97.2) 139 0.002
Low (<50 %) 15 (18.3) 2 (2.8) 17
ER or PR 26 (25.7) 4 (3.8) 30 <0.001
HER2+ 25 (24.7) 3 (2.8) 28 <0.001
Adjuvant therapy None 4 (3.9) 2 (1.9) 6 0.047
Chemotherapy 7 (6.9) 7 (6.6) 14
Endocrine therapy 17 (16.8) 35 (33.3) 52
Chemo-endocrine 73 (72.4) 61 (58.2) 154