Group | Mean age ± SD (years) | p* | Sex F:M | p** | Color of skin W:NW | p** |
Control (n = 58) | 60 ± 28.5 | 0.473 | 3:1 | 0.023 | 1:2 | 0.078 |
Case (n = 19) | 62 ± 24.5 | 19:1 | 1:1 |