Table 3.
Dukes’ staging
| Stage | 1980s (%) | 1990s (%) | P |
| A | 306 (13.3) | 416 (11) | 0.01 |
| B | 679 (29.5) | 1399 (37.1) | < 0.001 |
| C | 823 (35.8) | 1379 (36.6) | |
| D | 492 (21.4) | 578 (15.3) | < 0.001 |
| Total | 2 300 | 3772 |
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