Table 1 Percentage and intensity grade of staining.
Percentage grade of staining | Intensity grade of staining |
|---|---|
1 = 1<25% | Level 1 = weak staining |
2 = ≥25–50% | Level 2 = moderate staining |
3 = ≥50<75% | Level 3 = strong staining |
4 = ≥75<100% |  |
Percentage grade of staining | Intensity grade of staining |
|---|---|
1 = 1<25% | Level 1 = weak staining |
2 = ≥25–50% | Level 2 = moderate staining |
3 = ≥50<75% | Level 3 = strong staining |
4 = ≥75<100% |  |