Table 1. Characteristics of patients with esophageal carcinomas in SEER database.
| Characteristics | Total | Married | Unmarried | Divorced | Single | Widowed |
|---|---|---|---|---|---|---|
| 15598 (100%) | 9279 (59.49%) | 6319 (40.51%) | 1971 (12.64%) | 2592 (16.62%) | 1756 (11.26%) | |
| Sex | ||||||
| Male | 12581 (80.66%) | 8093 (87.22%) | 4488 (71.02%) | 1555 (78.89%) | 2083 (80.36%) | 850 (48.41%) |
| Female | 3017 (19.34%) | 1186 (12.78%) | 1831 (28.98%) | 416 (21.11%) | 509 (19.64%) | 906 (51.59%) |
| Race | ||||||
| White | 13241 (84.89%) | 8297 (89.42%) | 4944 (78.24%) | 1629 (82.65%) | 1879 (72.49%) | 1436 (81.78%) |
| Black | 1583 (10.15%) | 480 (5.17%) | 1103 (17.46%) | 273 (13.85%) | 609 (23.50%) | 221 (12.59%) |
| Other race | 774 (4.96%) | 502 (5.41%) | 272 (4.30%) | 69 (3.50%) | 104 (4.01%) | 99 (5.64%) |
| Age | ||||||
| <40 | 216 (1.38%) | 103 (1.11%) | 113 (1.79%) | 16 (0.81%) | 95 (3.67%) | 2 (0.11%) |
| 41-55 | 2985 (19.14%) | 1604 (17.29%) | 1381 (21.85%) | 466 (23.64%) | 863 (33.29%) | 52 (2.96%) |
| 56-70 | 7233 (46.37%) | 4565 (49.20%) | 2668 (42.22%) | 1062 (53.88%) | 1175 (45.33%) | 431 (24.54%) |
| 71-85 | 4416 (28.31%) | 2687 (28.96%) | 1729 (27.36%) | 399 (20.24%) | 396 (15.28%) | 934 (53.19%) |
| >85 | 748 (4.80%) | 320 (3.45%) | 428 (6.77%) | 28 (1.42%) | 63 (2.43%) | 337 (19.19%) |
| Histology | ||||||
| ESCC | 4725 (30.29%) | 2231 (24.04%) | 2494 (39.47%) | 696 (35.31%) | 1071 (41.32%) | 727 (41.40%) |
| EAC | 9530 (61.10%) | 6193 (66.74%) | 3337 (52.81%) | 1119 (56.77%) | 1348 (52.00%) | 870 (49.54%) |
| Others | 1343 (8.61%) | 855 (9.21%) | 488 (7.72%) | 156 (7.91%) | 173 (6.67%) | 159 (9.05%) |
| Grade | ||||||
| Well differentiated | 844 (5.41%) | 507 (5.46%) | 337 (5.33%) | 100 (5.07%) | 136 (5.25%) | 101 (5.75%) |
| Moderately differentiated | 6276 (40.24%) | 3592 (38.71%) | 2684 (42.48%) | 834 (42.31%) | 1120 (43.21%) | 730 (41.57%) |
| Poorly differentiated | 8172 (52.39%) | 5002 (53.91%) | 3170 (50.17%) | 1009 (51.19%) | 1290 (49.77%) | 871 (49.60%) |
| Undifferentiated | 306 (1.96%) | 178 (1.92%) | 128 (2.03%) | 28 (1.42%) | 46 (1.77%) | 54 (30.75%) |
| Location | ||||||
| Upper third of esophagus | 1053 (6.75%) | 481 (5.18%) | 572 (9.05%) | 167 (8.47%) | 245 (9.45%) | 160 (9.11%) |
| Middle third of esophagus | 3186 (20.43%) | 1595 (17.19%) | 1591 (25.18%) | 459 (23.29%) | 655 (25.27%) | 477 (27.16%) |
| Lower third of esophagus | 11359 (72.82%) | 7203 (77.63%) | 4156 (65.77%) | 1345 (68.24%) | 1692 (65.28%) | 1119 (63.72%) |
| TNM Stage | ||||||
| Stage I | 2548 (16.34%) | 1495 (16.11%) | 1053 (16.67%) | 266 (13.50%) | 385 (14.85%) | 402 (22.89%) |
| Stage II | 3317 (21.27%) | 1949 (21.00%) | 1368 (21.65%) | 428 (21.71%) | 524 (20.22%) | 416 (23.69%) |
| Stage III | 3733 (23.93%) | 2299 (24.78%) | 1434 (22.69%) | 487 (24.71%) | 595 (22.96%) | 352 (20.04%) |
| Stage IV | 6000 (38.47%) | 3536 (38.11%) | 2464 (38.99%) | 790 (40.08%) | 1088 (41.98%) | 586 (33.37%) |
| Therapy | ||||||
| No surgery or radiotherapy | 10247 (65.69%) | 5608 (60.44%) | 4639 (73.41%) | 1371 (69.56%) | 1854 (71.53%) | 1414 (80.52%) |
| Only surgery | 2107 (13.51%) | 1393 (15.01%) | 714 (11.30%) | 224 (11.36%) | 319 (12.31%) | 171 (9.74%) |
| Only radiotherapy | 359 (2.30%) | 224 (2.41%) | 135 (2.14%) | 45 (2.28%) | 62 (2.39%) | 28 (1.59%) |
| Surgery and radiotherapy | 2885 (18.50%) | 2054 (22.14%) | 831 (13.15%) | 331 (16.79%) | 357 (13.77%) | 143 (8.14%) |
SEER=surveillance, epidemiology and end results; ESCC=esophageal squamous cell carcinoma; EAC=esophageal adenocarcinoma; TNM= tumor, node and metastasis.