Table 2 Clinicopathologic features of study population
Clinicopathologic features | All tumors (695) | MSI (n=133) | MSS (n=562) | P-value |
|---|---|---|---|---|
Age at surgery | ||||
Mean | 72 | 77 | 71 | <0.0001 |
Range | 33–99 | 41–97 | 33–99 | |
Sex | ||||
Male | 330 (47%) | 37 (28%) | 293 (52%) | <0.0001 |
Female | 365 (53%) | 96 (72%) | 269 (48%) | |
Location a | ||||
Right | 263 (38%) | 91 (69%) | 172 (31%) | <0.0001 |
Transverse | 66 (10%) | 30 (23%) | 36 (6%) | |
Left | 364 (52%) | 11 (8%) | 353 (63%) | |
Grade b | ||||
Low | 549 (79%) | 78 (59%) | 471 (84%) | <0.0001 |
High | 143 (21%) | 54 (41%) | 89 (16%) | |
Stage | ||||
I | 112 (16%) | 16 (12%) | 96 (17%) | <0.0001 |
II | 245 (35%) | 77 (58%) | 168 (30%) | |
III | 312 (45%) | 39 (29%) | 273 (49%) | |
IV | 26 (4%) | 1 (1%) | 25 (4%) | |
Tumor size | 4.4 cm | 5.1 | 4.2 | <0.0001 |
Lymphovascular invasion | ||||
Present | 325 (47%) | 49 (37%) | 276 (49%) | 0.01 |
Absent | 370 (53%) | 84 (63%) | 286 (51%) | |
Lymph node metastasis | ||||
Present | 313 (45%) | 39 (29%) | 274 (49%) | <0.0001 |
Absent | 382 (55%) | 94 (71%) | 288 (51%) | |
