Table 2.
Variables and Weightsa Used to Derive the Sun Sensitivity Index in a Study of Nevi in Children, Framingham, Massachusetts, 2004
| Variable | Frequency (n) |
| Skin color | |
| Very fair (0.00) | 60 |
| Fair (0.17) | 218 |
| Light olive (0.33) | 33 |
| Dark olive (0.50) | 9 |
| Light brown (0.67) | 79 |
| Medium brown (0.83) | 32 |
| Very dark brown/black (1.00) | 11 |
| Missing | 1 |
| Hair color | |
| Blonde (0.00) | 22 |
| Red (0.00) | 12 |
| Blonde/light brown (0.20) | 41 |
| Light brown (0.40) | 94 |
| Medium brown (0.60) | 126 |
| Dark brown (0.80) | 92 |
| Black (1.00) | 56 |
| Missing | 0 |
| Tendency to burn | |
| Yes (0.00) | 142 |
| No (1.00) | 268 |
| Missing | 33 |
a
Numbers in parentheses indicate weights assigned to the categories to calculate the sun sensitivity index.