Table 2. EGFR protein expression assessed by anti-EGFR clone 5B7 (n=80) and anti-EGFR clone 3C6 antibodies (n=74).
| 5B7 (H) | 5B7 (C) | 3C6 (H) | 3C6 (C) | |
|---|---|---|---|---|
| Intensity | ||||
| Negative | 0 (0) | 11 (13.8) | 9 (12.2) | 31 (41.9) |
| 1+ | 19 (23.8) | 50 (62.5) | 20 (27.0) | 37 (50.0) |
| 2+ | 53 (66.2) | 19 (23.7) | 38 (51.3) | 6 (8.1) |
| 3+ | 8 (10) | 0 (0) | 7 (9.5) | 0 (0) |
| Localisation | ||||
| Membranous | 23 (28.75) | 11 (13.75) | 24 (32.4) | 11 (14.9) |
| Cytoplasmic | 23 (28.75) | 46 (57.5) | 18 (24.3) | 28 (37.8) |
| Both | 34 (42.5) | 12 (15) | 23 (31.1) | 4 (5.4) |
| Negative | 0 (0) | 11 (13.75) | 9 (12.2) | 31 (41.9) |
Abbreviations: C=most common staining; EGFR=epidermal growth factor receptor; H=highest staining.
Values are given n (%).