Variable | Overall (n = 148) | HER2(−) (n = 74) | HER2(+) (n = 74) | p value |
---|---|---|---|---|
Age (year) | 49.68 ± 10.64 | 50.47 ± 11.15 | 49.04 ± 10.11 | 0.414 |
Diameter (cm) | 3.42 ± 1.37 | 3.35 ± 1.20 | 3.48 ± 1.52 | 0.736 |
Affected side | Â | Â | Â | Â |
 Right | 64 (43.2) | 30 (40.5) | 34 (45.9) | 0.507 |
 Left | 84 (56.4) | 44 (59.5) | 40 (54.1) |  |
T stage | Â | Â | Â | Â |
 1 | 9 (6.0) | 5 (6.7) | 4 (5.4) | 0.235 |
 2 | 55 (37.2) | 26 (35.1) | 29 (39.2) |  |
 3 | 30 (20.3) | 11 (14.9) | 19 (25.7) |  |
 4 | 54 (36.5) | 32 (43.2) | 22 (29.7) |  |
N stage | Â | Â | Â | Â |
 0 | 20 (13.5) | 11 (14.9) | 9 (12.1) | 0.967 |
 1 | 64 (43.2) | 31 (41.9) | 33 (44.6) |  |
 2 | 26 (17.6) | 13 (17.5) | 13 (17.6) |  |
 3 | 38 (25.7) | 19 (25.7) | 19 (25.7) |  |
M stage | Â | Â | Â | Â |
 0 | 136 (91.9) | 68 (91.9) | 68 (91.9) | 1.00 |
 1 | 12 (8.1) | 6 (8.1) | 6 (8.1) |  |
cTNM | Â | Â | Â | Â |
 1 | 4 (2.7) | 2 (2.7) | 2 (2.7) | 0.685 |
 2 | 44 (29.7) | 25 (33.8) | 19 (25.7) |  |
 3 | 79 (53.4) | 36 (48.6) | 43 (58.1) |  |
 4 | 21 (14.2) | 11 (14.9) | 10 (13.5) |  |
Ki 67 | Â | Â | Â | Â |
 | 0.37 ± 0.20 | 0.35 ± 0.23 | 0.38 ± 0.18 | 0.360 |