Table 1 Patient and tumor characteristics
Variable | N0 (n = 45) | N1–2 (n = 16) | N≥3 (n = 20) | F/χ2 | P values |
|---|---|---|---|---|---|
Age (years)a | 57.64 ± 10.04 | 58.44 ± 12.32 | 51.55 ± 10.31 | 2.706 | 0.073 |
Lesion size(cm)b | 1.70 (0.70) | 2.25 (1.38) | 3.00 (1.15) | 20.092 | 0.000 |
Tumor Positionc | 0.606 | 0.739 | |||
Outer upper | 19 (42.2) | 6 (37.5) | 10 (50.0) | ||
Others | 26 (57.8) | 10 (62.5) | 10 (50.0) | ||
ERc | 0.462 | 0.479 | |||
Positive | 34 (75.6) | 15 (93.8) | 16 (80.0) | ||
Negative | 11 (24.4) | 1 (6.2) | 4 (20.0) | ||
PRc | 0.649 | 0.723 | |||
Positive | 29 (64.4) | 12 (75.0) | 13 (65.0) | ||
Negative | 16 (35.6) | 4 (25.0) | 7 (35.0) | ||
HER2c | 3.4145 | 0.065 | |||
Positive | 6 (13.3) | 1 (6.2) | 7 (35.0) | ||
Negative | 39 (86.7) | 15 (93.8) | 13 (65.0) | ||
Ki-67c | 0.997 | 0.318 | |||
Positive | 37 (82.2) | 15 (93.8) | 18 (90.0) | ||
Negative | 8 (17.8) | 1 (6.2) | 2 (10.0) | ||
Molecular subtypec | 9.800 | 0.133 | |||
Luminal A | 8 (17.8) | 1 (6.2) | 2 (10.0) | ||
Luminal B | 26 (57.8) | 14 (87.5) | 14 (70.0) | ||
HER2 positive | 1 (2.2) | 1 (6.2) | 1 (5.0) | ||
Triple negative | 10 (22.2) | 0 (0) | 3 (15.0) | ||
Histologic gradec | 5.161 | 0.076 | |||
I/II | 24 (53.3) | 9 (56.2) | 5 (25.0) | ||
III | 21 (46.7) | 7 (43.8) | 15 (75.0) | ||