Table II.
Classification standard for immunohistochemical staining of p21, p27 and survivin, evaluation and expression score calculation.
| Standard | Score |
|---|---|
| Percentage | |
| 0 | 0 |
| 5 | 1 |
| ≤25 | 2 |
| ≤50 | 3 |
| >50 | 4 |
| Intensity | |
| Negative | 0 |
| Weak | 1 |
| Moderate | 2 |
| Intense | 3 |
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