Variables | Mucosal (n = 508) | Submucosal (n = 525) | P |
---|---|---|---|
Age, years | 55.8 ± 11.3 | 57.9 ± 10.4 | 0.002 |
Sex, n (%) | |||
Male | 314 (61.8) | 354 (67.4) | 0.059 |
Female | 194 (38.2) | 171 (32.6) | |
Location, n (%) | |||
Upper | 37 (7.3) | 68 (13.0) | 0.011 |
Middle | 104 (20.5) | 100 (19.0) | |
Lower | 367 (72.2) | 357 (68.0) | |
Tumor size, cm | 2.0 ± 1.2 | 2.3 ± 1.1 | < 0.001 |
Retrieved LN | 24.5 ± 8.2 | 23.7 ± 8.1 | 0.100 |
LN metastasis, n (%) | |||
Negative | 464 (91.3) | 396 (75.4) | < 0.001 |
Positive | 44 (8.7) | 129 (24.6) | |
Lymphovascular invasion, n (%) | |||
Negative | 493 (97.0) | 439 (83.6) | < 0.001 |
Positive | 15 (3.0) | 86 (16.4) | |
Perineural invasion, n (%) | |||
Negative | 508 (100.0) | 493 (93.9) | < 0.001 |
Positive | 0 (0.0) | 32 (6.1) | |
Differentiation, n (%) | |||
D-type | 217 (42.7) | 217 (41.3) | 0.653 |
UD-type | 291 (57.3) | 308 (58.7) | |
Lauren classificationa, n (%) | |||
Intestinal | 213 (47.1) | 262 (54.9) | 0.003 |
Diffuse | 77 (17.0) | 93 (19.5) | |
Mixed | 162 (35.9) | 122 (25.6) |