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| Characteristic | <1 (%) | ≥1 (%) | <2 (%) | ≥2(%) | <5(%) | ≥5(%) | |
|---|---|---|---|---|---|---|---|
| Ki-67 | Negative | 18(85.7) | 3(14.3) | 20(95.2) | 1(4.8) | 20(95.2) | 1(4.8) |
| Positive | 31(75.6) | 10(24.4) | 35(85.4) | 6(14.6) | 36(87.8) | 5(12.2) | |
| P value | 0.541 | 0.406 | 0.654 | ||||
| Tumor grade | Poorly differentiated | 17(70.8) | 7(29.2) | 20(83.3) | 4(16.7) | 21(87.5) | 3(12.5) |
| Moderately differentiated | 28(90.3) | 3(9.7) | 31(100.0) | 0(0.0) | 31(100.0) | 0(0.0) | |
| P value | 0.084 | 0.031 | 0.077 |
