Table 1.
Clinicopathological characteristics of the selected patients.
| Non-surgery N=841 |
Surgery N=496 |
P value | |
|---|---|---|---|
| Sex | <0.001 | ||
| Female | 561 (66.7%) | 378 (76.2%) | |
| Male | 280 (33.3%) | 118 (23.8%) | |
| Race | 0.015 | ||
| Black | 136 (16.2%) | 61 (12.3%) | |
| White | 598 (71.1%) | 390 (78.6%) | |
| Other | 107 (12.74%) | 45 (9.07%) | |
| Age | 0.303 | ||
| ≤65 | 371 (44.1%) | 234 (47.2%) | |
| >65 | 470 (55.9%) | 262 (52.8%) | |
| Marital status | 0.112 | ||
| Married | 441 (52.4%) | 289 (58.3%) | |
| Unmarried | 360 (42.8%) | 188 (37.9%) | |
| Unknown | 40 (4.76%) | 19 (3.83%) | |
| Grade | <0.001 | ||
| I | 7 (0.83%) | 38 (7.66%) | |
| II | 58 (6.90%) | 180 (36.3%) | |
| III | 128 (15.2%) | 213 (42.9%) | |
| IV | 7 (0.83%) | 21 (4.23%) | |
| Unknown | 641 (76.2%) | 44 (8.87%) | |
| T | <0.001 | ||
| T1 | 113 (13.4%) | 25 (5.04%) | |
| T2 | 6 (0.71%) | 151 (30.4%) | |
| T3 | 345 (41.0%) | 285 (57.5%) | |
| T4 | 69 (8.20%) | 21 (4.23%) | |
| Unknown | 308 (36.6%) | 14 (2.82%) | |
| N | <0.001 | ||
| N0 | 348 (41.4%) | 266 (53.6%) | |
| N1 | 219 (26.0%) | 151 (30.4%) | |
| N2 | 126 (15.0%) | 44 (8.87%) | |
| Unknown | 148 (17.6%) | 35 (7.06%) | |
| Radiation | 0.016 | ||
| None/Unknown | 784 (93.2%) | 443 (89.3%) | |
| Yes | 57 (6.78%) | 53 (10.7%) | |
| Chemotherapy | 0.036 | ||
| No/Unknown | 326 (38.8%) | 222 (44.8%) | |
| Yes | 515 (61.2%) | 274 (55.2%) | |
| Regional lymph nodes | <0.001 | ||
| Negative | 6 (0.71%) | 48 (9.68%) | |
| Positive | 40 (4.76%) | 133 (26.8%) | |
| Unknown | 795 (94.5%) | 315 (63.5%) | |
| Bone | 0.21 | ||
| No | 779 (92.6%) | 469 (94.6%) | |
| Yes | 62 (7.37%) | 27 (5.44%) | |
| Brain | 0.684 | ||
| No | 829 (98.6%) | 491 (99.0%) | |
| Yes | 12 (1.43%) | 5 (1.01%) | |
| Liver | 0.001 | ||
| No | 248 (29.5%) | 193 (38.9%) | |
| Yes | 593 (70.5%) | 303 (61.1%) | |
| Lung | <0.001 | ||
| No | 707 (84.1%) | 466 (94.0%) | |
| Yes | 134 (15.9%) | 30 (6.05%) | |
| DLN | 0.001 | ||
| No | 684 (81.3%) | 438 (88.3%) | |
| Yes | 157 (18.7%) | 58 (11.7%) | |
| Tumor size | <0.001 | ||
| ≤1 | 23 (2.73%) | 14 (2.82%) | |
| ≤3 | 64 (7.61%) | 121 (24.4%) | |
| ≤5 | 91 (10.8%) | 92 (18.5%) | |
| >5 | 153 (18.2%) | 87 (17.5%) | |
| Unknown | 510 (60.6%) | 182 (36.7%) | |
| Histology | <0.001 | ||
| Adenocarcinomas | 655 (77.9%) | 416 (83.9%) | |
| Epithelial | 103 (12.2%) | 32 (6.45%) | |
| Mucinous | 29 (3.45%) | 34 (6.85%) | |
| Others | 54 (6.42%) | 14 (2.82%) |