Table IV.
Expression analysis of L1, CD24, integrin β1 and Ki-67 in gastrointestinal stromal tumors with different invasive risks.
| IHC results, n | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Target | Grade | Total, n | - | + | ++ | +++ | Positive rates, % | χ2 | P-value |
| L1 | I | 3 | 2 | 1 | 0 | 0 | 33.3 | 7.853 | <0.05 |
| II | 18 | 12 | 4 | 1 | 1 | 33.3 | |||
| III | 19 | 7 | 5 | 4 | 3 | 63.2 | |||
| IV | 26 | 7 | 6 | 7 | 6 | 73.1 | |||
| CD24 | I | 3 | 2 | 1 | 0 | 0 | 33.3 | 1.841 | >0.05 |
| II | 18 | 6 | 7 | 4 | 1 | 66.7 | |||
| III | 19 | 4 | 6 | 7 | 2 | 78.9 | |||
| IV | 26 | 6 | 7 | 7 | 6 | 76.9 | |||
| Integrin β1 | I | 3 | 2 | 1 | 0 | 0 | 33.3 | 13.088 | <0.05 |
| II | 18 | 10 | 5 | 2 | 1 | 44.4 | |||
| III | 19 | 6 | 5 | 5 | 3 | 68.4 | |||
| IV | 26 | 4 | 4 | 10 | 8 | 84.6 | |||
| Ki-67 | I | 3 | 3 | 0 | 0 | 0 | 0.0 | 17.682 | <0.05 |
| II | 18 | 12 | 4 | 2 | 0 | 33.3 | |||
| III | 19 | 5 | 6 | 5 | 3 | 73.7 | |||
| IV | 26 | 4 | 5 | 8 | 9 | 84.6 | |||
CD24, cluster of differentiation 24; IHC, immunohistochemical staining.