| Relative risks for developing melanoma |
| Risk Factor |
Approximate/Estimated Relative Risk |
| 5 atypical nevi |
10.5 (95% CI 5.1-21.8) Relative to those with no atypical nevi* |
| Previous primary cutaneous melanoma |
8.6 (95% CI 8.3-8.9) Relative to those without prior
melanoma** |
| 100 or more nevi |
6.9 (5% CI 4.6-10.3) Relative to those with < 15 nevi* |
| Red Hair |
3.6 (95% CI 2.6-5.4) Relative to those with dark hair*** |
| Skin Type I (fair skin) |
2.1 (95% CI 1.7-2.6) Relative to those with type IV or darker skin^ |
| High density freckling |
2.1 (95% CI 1.8-2.5) Relative to those with few freckles^ |
| History of blistering sunburn |
2.0 (95% CI 1.7-2.4) Relative to those with no history of sunburn^^ |
| Blue eyes |
1.5 (95% CI 1.3-1.7) relative to those with dark eyes^ |
