Table 2. Frequencies (%) of SNB for Breslow thickness <1 mm, according to the EORTC membership status.
| SNB | Active (AM) | Probationary (PM) | Foreign (FMU) | All |
|---|---|---|---|---|
| Patient choice | 6 (19) | 14 (44) | 12 (38) | 32 (100) |
| Regression | 11 (24) | 23 (50) | 12 (26) | 46 (100) |
| Ulceration | 12 (24) | 25 (50) | 13 (26) | 50 (100) |
| Clark IV–V | 11 (26) | 19 (45) | 12 (29) | 42 (100) |
| Nodular melanoma | 7 (37) | 8 (42) | 4 (21) | 19 (100) |
| All | 21 (28) | 35 (47) | 19 (25) | 75 (100) |