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Recurrence rate of Stage I colorectal cancer (RS cancer was counted as colon cancer)
| Stage I | No. of patients | No. of patients with recurrence | Recurrence rate (%) | p value |
|---|---|---|---|---|
| Tumor location | ||||
| Colon | 891 | 24 | 2.7 | 0.0056 |
| Rectum | 476 | 27 | 5.7 | |
| Depth of tumor invasion | ||||
| SM | 714 | 9 | 1.3 | <0.0001 |
| MP | 653 | 42 | 6.4 | |
| Tumor location and depth of tumor invasion | ||||
| Colon | ||||
| SM | 528 | 7 | 1.3 | 0.0024 |
| MP | 363 | 17 | 4.7 | |
| Rectum | ||||
| SM | 186 | 2 | 1.1 | 0.0005 |
| MP | 290 | 25 | 8.6 | |
Project study of the JSCCR: patients in years 1991–1996
