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Selected demographic characteristics of study participants
| Controls | BCC | Multiple BCCa | SCC | |
|---|---|---|---|---|
| N (%) | 398 (39) | 387 (38) | 44 (4) | 238 (23) |
| Age | ||||
| Mean (SD) | 58 (12) | 59 (11) | 60 (10) | 64 (8) |
| Sex | ||||
| Male (%) | 236 (59) | 219 (57) | 31 (70) | 163 (68) |
| Female (%) | 162 (41) | 168 (43) | 13 (30) | 75 (32) |
≥3 concomitant BCCs
