Table 1.
Clinicopathological Characters
| Without Metastasis | Metastasis | P | |
|---|---|---|---|
| N = 1679 | N = 987 | ||
| Age (years) | 0.221b | ||
| ≤ 60 | 793 (47.2%) | 442 (44.8%) | |
| > 60 | 886 (52.8%) | 545 (55.2%) | |
| Sex | 0.338a | ||
| Male | 924 (55.0%) | 562 (56.9%) | |
| Female | 755 (45.0%) | 425 (43.1%) | |
| Race | 0.011a | ||
| White | 1314 (78.3%) | 787 (79.7%) | |
| Black | 191 (11.4%) | 130 (13.2%) | |
| Other | 174 (10.3%) | 70 (7.1%) | |
| Size (cm) | < 0.001b | ||
| ≤ 2 | 670 (39.9%) | 68 (6.9%) | |
| > 2 | 934 (55.6%) | 699 (70.8%) | |
| Unclear | 75 (4.5%) | 220 (22.3%) | |
| Primary Site | < 0.001b | ||
| Head | 502 (29.9%) | 258 (26.2%) | |
| Body | 295 (17.6%) | 106 (10.7%) | |
| Tail | 542 (32.3%) | 314 (31.8%) | |
| Other | 340 (20.2%) | 309 (31.3%) | |
| Differentiation | < 0.001b | ||
| Well | 1043 (62.1%) | 189 (19.1%) | |
| Moderately | 221 (13.2%) | 86 (8.7%) | |
| Poorly | 64 (3.8%) | 95 (9.6%) | |
| Undifferentiated | 17 (1.0%) | 28 (2.8%) | |
| Unclear | 334 (19.9%) | 589 (59.7%) | |
| T-sage | < 0.001b | ||
| T1 | 602 (35.9%) | 37 (3.7%) | |
| T2 | 538 (32.0%) | 276 (28.0%) | |
| T3 | 389 (23.2%) | 271 (27.5%) | |
| T4 | 67 (4.0%) | 102 (10.3%) | |
| Tx | 83 (4.9%) | 301 (30.5%) | |
| N-stage | < 0.001b | ||
| N0 | 1247 (74.3%) | 463 (46.9%) | |
| N1 | 401 (23.9%) | 338 (34.3%) | |
| Nx | 31 (1.8%) | 186 (18.8%) | |
| Surgery | < 0.001b | ||
| Yes | 1313 (78.2%) | 164 (16.6%) | |
| No | 339 (20.2%) | 813 (82.4%) | |
| Unclear | 27 (1.6%) | 10 (1.0%) | |
| Radiation | < 0.001b | ||
| Yes | 52 (3.1%) | 74 (7.5%) | |
| No | 1609 (95.8%) | 905 (91.7%) | |
| Unclear | 18 (1.1%) | 8 (0.8%) | |
aChi-square test; bKruskal-Wallis test