Table 1 Correlation between the number of negative lymph nodes removed and clinicopathologic factors
Characteristic | Number of negative lymph nodes | Pvalue | ||||
|---|---|---|---|---|---|---|
0-10 (n = 607) | 11-13 (n = 706) | 14-16 (n = 554) | 17-40 (n = 588) | |||
Age | ||||||
<35 | 234 | 68 (11.2) | 51 (7.2) | 51 (9.2) | 64 (10.9) | 0.054 |
≥35 | 2221 | 539 (88.8) | 655 (92.8) | 503 (90.8) | 524 (89.1) | |
Menopause | ||||||
Premenopause | 1641 | 402 (66.2) | 460 (65.2) | 354 (63.9) | 425 (72.3) | 0.012* |
Postmenopause | 814 | 205 (33.8) | 246 (34.8) | 200 (36.1) | 163 (27.7) | |
pT stage | ||||||
T1 | 812 | 159 (26.2) | 259 (36.7) | 190 (34.3) | 204 (34.7) | <0.001* |
T2 | 1428 | 352 (58.0) | 398 (53.4) | 323 (58.3) | 355 (60.4) | |
T3 | 155 | 71 (11.7) | 41 (5.8) | 25 (4.5) | 18 (3.1) | |
T4 | 60 | 25 (4.1) | 8 (1.1) | 16 (2.9) | 11 (1.8) | |
pN stage | ||||||
N0 | 1263 | 120 (19.8) | 430 (60.9) | 342 (61.7) | 371 (63.1) | <0.001* |
N1 | 769 | 185 (30.5) | 220 (31.2) | 174 (31.4) | 190 (32.3) | |
N2 | 207 | 115 (18.9) | 44 (6.2) | 30 (5.4) | 18 (3.1) | |
N3 | 216 | 187 (30.8) | 12 (1.7) | 8 (1.5) | 9 (1.5) | |
ER | ||||||
Negative | 953 | 245 (40.4) | 252 (35.7) | 219 (39.5) | 237 (40.3) | 0.304 |
Positive | 1292 | 321 (52.9) | 384 (54.3) | 287 (51.8) | 300 (51.0) | |
Unknown | 210 | 41 (6.7) | 70 (10.0) | 48 (8.7) | 51 (8.7) | |
PR | ||||||
Negative | 824 | 207 (34.1) | 223 (31.5) | 198 (35.7) | 196 (33.3) | 0.398 |
Positive | 1421 | 359 (59.1) | 413 (58.5) | 308 (55.6) | 341 (58.0) | |
Unknown | 210 | 41 (6.8) | 70 (10.0) | 48 (8.7) | 51 (8.7) | |
Her-2 | ||||||
Negative | 1377 | 329 (54.2) | 395 (56.0) | 307 (55.4) | 346 (58.8) | 0.460 |
Positive | 666 | 168 (27.7) | 183 (25.9) | 157 (28.3) | 158 (26.9) | |
Unknown | 412 | 110 (18.1) | 128 (18.1) | 90 (16.3) | 84 (14.3) | |