Expression of carbonic anhydrase IX (Ca9) in gastric cancer, as shown by immunohistochemistry
| Characteristic | Moderately differentiated intestinal-type (n = 21) | Poorly differentiated intestinal-type (n = 9) | Diffuse-type (n = 27) |
|---|---|---|---|
| IRS, immunoreactivity score. | |||
| *p values refer to differences between the IRS of cancer cells and foveolar epithelium. | |||
| Age (y) (mean (SD)) | 68.3 (10.0) | 60.0 (11.2) | 62.0 (11.0) |
| Sex (M/F) | 15/6 | 7/2 | 15/12 |
| IRS of cancer cells | 1.67 (1.73) | 2.05 (1.99) | 1.96 (2.10) |
| IRS of foveolar epithelium | 5.50 (0.84) | 5.88 (0.33) | 5.52 (0.98) |
| p Value* | <0.001 | <0.001 | <0.001 |