Patient and Tumor Characteristics
| Characteristic | n | % |
| Patient | ||
| Age (y) | ||
| <50 | 23 | 26.4 |
| 50–65 | 36 | 41.4 |
| >65 | 28 | 32.2 |
| Sex | ||
| Male | 42 | 48.3 |
| Female | 45 | 51.7 |
| Hospital | ||
| Estaing UH/Jean Perrin CC, Clermont-Ferrand | 18 | 20.7 |
| Nord UH, Saint-Etienne | 18 | 20.7 |
| Purpan UH, Toulouse | 14 | 16.1 |
| Sainte-Marguerite UH, Marseille | 10 | 11.5 |
| Archet UH, Nice | 10 | 11.5 |
| Fournier UH, Nancy | 7 | 8.0 |
| Croix-Rousse UH, Lyon | 6 | 6.9 |
| Trousseau UH, Tours | 4 | 4.6 |
| Past history of treatment | ||
| None | 44 | 50.6 |
| Chemotherapy | 14 | 16.1 |
| Radiotherapy | 2 | 2.3 |
| Interferon | 4 | 4.6 |
| Not known | 23 | 26.4 |
| Tumor | ||
| Histology | ||
| Ocular melanoma | 7 | 8.0 |
| Nodular melanoma | 21 | 24.1 |
| Superficial spreading melanoma | 30 | 34.5 |
| Acral lentiginous melanoma | 6 | 6.9 |
| Other | 6 | 6.9 |
| Not known | 17 | 19.5 |
| Cutaneous melanoma pigmentation | ||
| Pigmented | 51 | 58.6 |
| Achromic | 7 | 8.0 |
| Not known | 29 | 33.3 |
| Prognosis factor | ||
| Clark level | ||
| I | 3 | 3.4 |
| II | 2 | 2.3 |
| III | 20 | 23.0 |
| IV | 46 | 52.9 |
| V | 3 | 3.4 |
| Not known | 13 | 14.9 |
| Breslow thickness (mm) | ||
| <1.0 | 12 | 13.8 |
| 1.0–2.0 | 34 | 39.1 |
| ≥2.0 | 41 | 47.1 |
UH = University Hospital; CC = Comprehensive Cancer Center.