Table 1 Patient clinicopathological characteristics in the FNA and SLNB groups
Characteristics | All patients | FNA | SLNB | P value |
|---|---|---|---|---|
(N = 388) N | (N = 202) N (%) | (N = 186) N (%) | ||
Age [mean (range)] (year) | 54.38 (31–84) | 54.68 (31–84) | 54.06 (31–83) | 0.581 |
Tumor stage | 0.021 | |||
T1 | 138 | 61 (30.20) | 77 (41.40) | |
T2 | 250 | 141 (69.80) | 109 (58.60) | |
Number of suspicious ALNs at US | < 0.001 | |||
≤ 1 | 207 | 37 (18.32) | 170 (91.40) | |
> 1 | 181 | 165 (81.68) | 16 (8.60) | |
Pathological type | 0.391 | |||
Invasive ductal carcinoma | 369 | 194 (96.04) | 175 (94.09) | |
Invasive lobular carcinoma | 10 | 3 (1.49) | 7 (3.76) | |
Others | 9 | 5 (2.48) | 4 (2.15) | |
Histological grade | 0.001 | |||
I | 15 | 4 (1.98) | 11 (5.91) | |
II | 182 | 81 (40.10) | 101 (54.30) | |
III | 191 | 117 (57.92) | 74 (39.78) | |
LVI | < 0.001 | |||
Negative | 325 | 154 (76.24) | 171 (91.94) | |
Positive | 63 | 48 (23.76) | 15 (8.06) | |
Multifocality | 0.485 | |||
Unifocal | 346 | 178 (88.12) | 168 (90.32) | |
Multifocal | 42 | 24 (11.88) | 18 (9.68) | |
ER status | 0.002 | |||
Negative | 90 | 60 (29.70) | 30 (16.13) | |
Positive | 298 | 142 (70.30) | 156 (83.87) | |
PR status | 0.007 | |||
Negative | 137 | 84 (41.58) | 53 (28.49) | |
Positive | 251 | 118 (58.42) | 133 (71.51) | |
HER2 status | 0.002 | |||
Negative | 292 | 139 (68.81) | 153 (82.26) | |
Positive | 96 | 63 (31.19) | 33 (17.74) | |
Ki67 (%, mean) | < 0.001 | |||
< 14% | 114 | 41 (20.30) | 73 (39.25) | |
≥ 14% | 274 | 161 (79.70) | 113 (60.75) | |
Molecular subtypes | 0.003 | |||
Luminal A | 78 | 31 (15.35) | 47 (25.27) | |
Luminal B-HER2 negative | 179 | 88 (43.56) | 91 (48.92) | |
Luminal B-HER2 positive | 42 | 23 (11.39) | 19 (10.22) | |
HER2 positive | 54 | 40 (19.80) | 14 (7.53) | |
Triple negative | 35 | 20 (9.90) | 15 (8.06) | |