|
| Patient variables | Asians () | Caucasian controls () | value |
|
| Mean age (years) of onset for first BCC | 68.9 ± 13.2 | 58.3 ± 14.0 | <0.05 |
| Occurrence of multiple (>1) lifetime BCC | 1 | 23 | <0.01 |
| Mean number of lifetime BCCs | | | <0.02 |
| Mean Fitzpatrick skin phototype | | | <0.15 |
| Presence of fair skin | 2 (20.0%) | 18 | <0.04 |
| Mean sun exposure (hours/day) | 2.5 | 2.77 | <0.70 |
| History of chemical exposure | 4 | 7 | <0.40 |
| History of X-ray exposure | 2 | 11 | <0.46 |
| Mean smoking pack years | | | <0.45 |
| Hx of non-BCC skin cancer | 0 (0%) | 5 | <0.32 |
| FHx of skin cancer | 0 (0%) | 10 | <0.08 |
| Hx of other cancer | 0 (0%) | 8 | <0.16 |
| FHx of other cancer | 5 | 21 | <0.44 |
|