Table 1. Clinical characteristics of patients.
| Features | Liver metastasis, n (%) | P | Lung metastasis, n (%) | P | Bone metastasis, n (%) | P | Brain metastasis, n (%) | P | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No | Yes | No | Yes | No | Yes | No | Yes | |||||
| Sex | <0.001 | 0.048 | <0.001 | 0.233 | ||||||||
| Women | 1,755 (89.8) | 200 (10.2) | 1,787 (91.4) | 168 (8.6) | 1,847 (94.5) | 108 (5.5) | 1,930 (98.7) | 25 (1.3) | ||||
| Men | 6,633 (83.1) | 1,346 (16.9) | 7,180 (90.0) | 799 (10.0) | 7,321 (91.8) | 658 (8.2) | 7,847 (98.3) | 132 (1.7) | ||||
| Age | <0.001 | 0.760 | <0.001 | <0.001 | ||||||||
| Mean | 67.05 | 64.88 | 66.73 | 66.61 | 66.88 | 64.72 | 66.78 | 62.64 | ||||
| Race | 0.001 | <0.001 | 0.270 | 0.351 | ||||||||
| Caucasian | 7,100 (83.9) | 1,367 (16.1) | 7,691 (90.8) | 776 (9.2) | 7,799 (92.1) | 668 (7.9) | 8,327 (98.3) | 140 (1.7) | ||||
| African American | 890 (87.5) | 127 (12.5) | 884 (86.7) | 133 (13.1) | 948 (93.2) | 69 (6.8) | 1,006 (98.9) | 11 (1.1) | ||||
| Asian | 398 (88.4) | 52 (11.6) | 392 (87.1) | 58 (12.9) | 421 (93.6) | 29 (6.4) | 444 (98.7) | 6 (1.3) | ||||
| Histology | <0.001 | <0.001 | <0.001 | <0.001 | ||||||||
| ESCC | 2,952 (91.1) | 288 (8.9) | 2,872 (88.6) | 368 (11.4) | 3,058 (94.4) | 182 (5.6) | 3,222 (99.4) | 18 (0.6) | ||||
| EAC | 4,922 (80.7) | 1,176 (19.3) | 5,542 (90.9) | 556 (9.1) | 5,576 (91.4) | 522 (8.6) | 5,965 (97.8) | 133 (2.2) | ||||
| Others | 514 (86.2) | 82 (13.8) | 553 (92.8) | 43 (7.2) | 534 (89.6) | 62 (10.4) | 590 (99.0) | 6 (1.6) | ||||
| Grade | <0.001 | <0.001 | <0.001 | 0.077 | ||||||||
| 1 | 593 (93.4) | 42 (6.6) | 604 (95.1) | 31 (4.9) | 612 (96.4) | 23 (3.6) | 629 (99.1) | 6 (0.9) | ||||
| 2 | 3,595 (87.2) | 530 (12.8) | 3,751 (90.9) | 374 (9.1) | 3,887 (94.2) | 238 (5.8) | 4,069 (98.6) | 56 (1.4) | ||||
| 3–4 | 4,200 (81.2) | 974 (18.8) | 4,612 (89.1) | 562 (10.9) | 4,669 (90.2) | 505 (9.8) | 5,079 (98.2) | 95 (1.8) | ||||
ESCC, esophageal squamous cell carcinoma; EAC, esophageal adenocarcinoma.