Research Article
Survival Contradiction in Stage II, IIIA, And IIIB Colon Cancer: A Surveillance, Epidemiology, and End Result-Based Analysis
Table 1
Patient characteristics with stage II, IIIA and IIIB colon cancer in the SEER database.
| | Characteristics | Total [N (%)] | IIA | IIB | IIC | IIIA | IIIB | |
| | N | 31361 | 14871 (47.4) | 1514 (4.8) | 1140 (3.6) | 1956 (6.2) | 11880 (37.9) | | | Sex | | | | | | | 0.082 | | Female | 15674 (50.0) | 7359 (49.5) | 762 (50.3) | 603 (52.9) | 950 (48.6) | 6000 (50.5) | | | Male | 15687 (50.0) | 7512 (50.5) | 752 (49.7) | 537 (47.1) | 1006 (51.4) | 5880 (49.5) | | | Age at diagnosis (yr) | | | | | | | <0.001 | | ≤60 | 9709 (31.0) | 4024 (27.1) | 434 (29.7) | 374 (32.8) | 795 (40.6) | 4082 (34.4) | | | >60 | 21652 (69.0) | 10847 (72.9) | 1080 (71.3) | 766 (67.2) | 1161 (59.4) | 7798 (65.6) | | | Race | | | | | | | <0.001 | | White | 24275 (77.4) | 11800 (79.3) | 1200 (79.3) | 913 (80.1) | 1434 (73.3) | 8928 (75.2) | | | Black | 3823 (12.2) | 1680 (11.3) | 150 (9.9) | 139 (12.2) | 269 (13.8) | 1585 (13.3) | | | Other | 3263 (10.4) | 1391 (9.4) | 164 (10.8) | 88 (7.7) | 253 (12.9) | 1367 (11.5) | | | Histological type | | | | | | | <0.001 | | Adenocarcinoma | 28168 (89.8) | 13333 (89.7) | 1302 (86.0) | 963 (84.5) | 1851 (94.6) | 10719 (90.2) | | | Other | 3193 (10.2) | 1538 (10.3) | 212 (14.0) | 177 (15.5) | 105 (5.4) | 1161 (9.8) | | | Initial diagnosed site | | | | | | | <0.001 | | Right colon | 15715 (50.1) | 8321 (56.0) | 730 (48.2) | 436 (38.2) | 699 (35.7) | 5529 (46.5) | | | Left colon | 15646 (49.9) | 6550 (44.0) | 784 (51.8) | 704 (61.8) | 1257 (64.3) | 6351 (53.5) | | | LNH | | | | | | | <0.001 | | <12 | 3969 (12.7) | 1767 (11.9) | 229 (15.1) | 171 (15.0) | 375 (19.2) | 1427 (12.0) | | | ≥12 | 27392 (87.3) | 13104 (88.1) | 1285 (84.9) | 969 (85.0) | 1571 (80.8) | 10453 (88.0) | | | Radiotherapy | | | | | | | <0.001 | | Yes | 442 (1.4) | 96 (0.6) | 47 (3.1) | 121 (10.6) | 18 (0.9) | 160 (1.4) | | | No/unknown | 30919 (98.6) | 14775 (99.4) | 1467 (96.9) | 1019 (89.4) | 1938 (99.1) | 30919 (98.6) | | | Chemotherapy | | | | | | | <0.001 | | Yes | 11697 (37.3) | 1902 (12.8) | 519 (34.3) | 533 (46.8) | 1324 (67.7) | 7419 (62.4) | | | No/unknown | 19664 (62.7) | 12969 (87.2) | 995 (65.7) | 607 (53.2) | 632 (32.3) | 4461 (37.6) | | | Marriage status | | | | | | | <0.001 | | Married | 17131 (54.6) | 8030 (54.0) | 781 (51.6) | 530 (46.5) | 1223 (62.5) | 6567 (55.3) | | | Unmarried/DSW | 14230 (45.4) | 6841 (46.0) | 733 (48.4) | 610 (53.5) | 733 (37.5) | 5313 (44.7) | |
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Note. LNH: number of lymph nodes harvested; DSW: divorced & separated &widowed.
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