Table 1 Patients’ clinicopathological features of IR, BCS, and TM in T≤3cm
Characteristic feature | IR (N=155) | BCS (N=155) | TM (N=155) | P |
|---|---|---|---|---|
n (%) | n (%) | n (%) | ||
Age | Matching variable | |||
 ≤35 | 70 (45.16) | 70 (45.16) | 70 (45.16) |  |
 >35 | 85 (54.84) | 85 (54.84) | 85 (54.84) |  |
pT | Matching variable | |||
 T1(≤2cm) | 75 (48.39) | 75 (48.39) | 75 (48.39) |  |
 T2(2–3cm) | 80 (51.61) | 80 (51.61) | 80 (51.61) |  |
pN | Matching variable | |||
 N0 | 110 (70.97) | 110 (70.97) | 110 (70.97) |  |
 N1-2 | 45 (29.03) | 45 (29.03) | 45 (29.03) |  |
Stage | Â | |||
 I | 56 (36.13) | 51 (32.91) | 45 (29.03) | 0.210 |
 IIA | 74 (47.74) | 77 (49.68) | 70 (45.16) |  |
 IIB | 25 (16.13) | 27 (17.41) | 40 (25.81) |  |
HG | 0.906 | |||
 I | 38 (24.52) | 42 (27.10) | 41 (26.45) |  |
 II | 104 (67.10) | 101 (65.16) | 98 (63.23) |  |
 III | 13 (8.39) | 12 (7.74) | 16 (10.32) |  |
ER | 0.186 | |||
 ER (+) | 113 (72.90) | 101 (65.16) | 99 (63.87) |  |
 ER (−) | 42 (27.10) | 54 (34.84) | 56 (36.13) |  |
PR | 0.520 | |||
 PR (+) | 106 (68.39) | 99 (63.87) | 108 (69.68) |  |
 PR (−) | 49 (31.61) | 56 (36.13) | 47 (30.32) |  |
Her2 | 0.266 | |||
 Her2 (+) | 36 (23.23) | 46 (29.68) | 48 (30.97) |  |
 Her2 (−) | 119 (76.77) | 109 (70.32) | 107 (69.03) |  |
Ki67 | 0.318 | |||
 Ki67 (≤14%) | 76 (49.03) | 67 (43.23) | 80 (51.61) |  |
 Ki67 (>14%) | 79 (50.97) | 88 (56.77) | 75 (48.39) |  |
Subtype | 0.990 | |||
 Luminal A | 55 (35.48) | 57 (36.77) | 51 (32.90) |  |
 Luminal B | 67 (43.23) | 62 (40.00) | 67 (43.23) |  |
 Her2+ | 16 (10.32) | 18 (11.61) | 18 (11.61) |  |
 TN | 17 (10.97) | 18 (11.61) | 19 (12.26) |  |
Chemotherapy | 0.686 | |||
 Yes | 102 (65.81) | 100 (64.52) | 107 (69.03) |  |
 No | 53 (34.19) | 55 (35.48) | 48 (30.97) |  |
Hormone therapy | 0.917 | |||
 Yes | 122 (78.71) | 120 (77.42) | 119 (77.77) |  |
 No | 33 (21.29) | 35 (22.58) | 36 (23.23) |  |
Anti-Her2 therapy | 0.940 | |||
 Yes | 31 (86.11) | 39 (84.78) | 40 (83.33) |  |
 No | 5 (13.89) | 7 (15.22) | 8 (16.67) |  |
Local recurrence | 0.919 | |||
 Yes | 12 (7.74) | 13 (8.38) | 14 (9.03) |  |
 No | 143 (92.26) | 142 (91.62) | 90.97 |  |
Distant metastasis | 0.531 | |||
 Yes | 10 (6.45) | 11 (7.09) | 15 (9.67) |  |
 No | 145 (93.55) | 144 (92.91) | 140 (90.33) |  |