Table 4.
External validation patient clinical characteristics information.
| Variable | External validation (n = 228) |
p |
|---|---|---|
| Age (years) | < 0.001 | |
| <31 | 3 (1.3) | |
| 31-40 | 5 (2.1) | |
| 41-50 | 20 (8.6) | |
| 51-60 | 41 (17.8) | |
| 61-70 | 72 (31.3) | |
| 71-80 | 63 (27.3) | |
| 81-90 | 24 (10.4) | |
| >90 | 0 (0.0) | |
| T.stage | < 0.001 | |
| T1 | 13(5.6) | |
| T2 | 12 (5.2) | |
| T3 | 173 (75.2) | |
| T4a | 23 (10.0) | |
| T4b | 7 (3.0) | |
| N.stage | < 0.001 | |
| N0 | 127 (55.2) | |
| N1a | 22 (9.5) | |
| N1b | 21 (9.1) | |
| N1c | 34 (14.7) | |
| N2a | 13 (5.6) | |
| N2b | 11 (4.7) | |
| M.stage | < 0.001 | |
| M0 | 198(86.0) | |
| M1a | 14 (6.0) | |
| M1b | 16 (6.9) | |
| Summary.stage | < 0.001 | |
| Localized | 22 (9.5) | |
| Regional | 176 (76.5) | |
| Distant | 30 (13.0) | |
| Chemotherapy | < 0.001 | |
| Yes | 97 (42.1) | |
| No | 131 (57.9) | |
| Liver metastasis | < 0.001 | |
| Yes | 3 (1.3) | |
| No | 225 (98.7) | |
| CEA | < 0.001 | |
| Normal | 10,443(59.2) | |
| Positive | 7,199(40.8) | |
| Survival status | ||
| Alive | 12,140(68.8) | |
| Dead | 5,502(31.2) | |