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MMP-2/TIMP-2 ratio of normal and colorectal carcinoma tissues (mean±SD).
| Variable | MMP-2/TIMP-2 | P |
| Tissues | P<0.05 | |
| Normal | 0.5807±0.2061 | |
| Carcinoma | 2.4179±0.6534 | |
| Invasion depth | ||
| Muscular layer invasion | 2.5781±0.4336 | |
| Serous membrane layer or | ||
| surrounding soft tissue invasion | 2.1308±0.7311 | |
| Lymph node metastasis | ||
| Negative | 2.2907±0.5102 | |
| Positive | 1.7643±0.2597 | |
| Duke’s stage | ||
| A | 2.6419±0.5429 | |
| B | 1.7081±0.3631 | |
| C | 1.9880±0.1551 | |
| D | 1.5407±0.1794 |
