Table 6. Clinical features associated with diagnostic/prognostic values of postoperative CEA and the biochip.
| Postoperative CEA (+/-) | Biochip (+/-) | P | |
|---|---|---|---|
| Maximum tumor size | 0.690 | ||
| ≧5cm | 20/58 | 15/63 | |
| <5cm | 51/169 | 47/173 | |
| Location | 0.009 | ||
| Rectum | 22/55 | 24/53 | |
| Colon | 49/172 | 38/183 | |
| Depth of tumor invasion | 0.361 | ||
| T (1+2) | 23/88 | 20/91 | |
| T (3+4) | 48/139 | 42/145 | |
| Lymph node metastasis | 0.934 | ||
| N (0) | 42/142 | 38/146 | |
| N (1+2) | 29/85 | 24/90 | |
| Histology | 0.069 | ||
| WD+MD | 68/218 | 57/229 | |
| PD | 3/9 | 5/7 | |
| TNM stage | 0.934 | ||
| I+II | 42/142 | 38/146 | |
| III | 29/85 | 24/90 | |
| Vascular invasion | 0.328 | ||
| Positive | 24/62 | 21/65 | |
| Negative | 47/165 | 41/171 | |
| Perineural invasion | 0.010 | ||
| Positive | 12/49 | 20/41 | |
| Negative | 59/178 | 42/195 | |
| Postoperative relapse | <0.001 | ||
| Yes | 29/19 | 42/6 | |
| No | 42/208 | 20/230 | |
| Mortality | <0.001 | ||
| Yes | 15/11 | 19/7 | |
| No | 56/216 | 43/229 |