Expression of β-tubulin in IDC with different histological grades.
| Group | n | - | + | ++ | +++ |
|---|---|---|---|---|---|
| Low grade | 35 | 0 | 4 | 13 | 18 |
| High grade | 15 | 0 | 2 | 5 | 8 |
| Total | 50 | 0 | 6 | 18 | 26 |
The difference between the two groups was not significant (z = -0.036, P > 0.05), and there was not a relation of β-tubulin expression to histological grade of IDC (P > 0.05).