Table 1.
Demographic Characteristics for 56 Cutaneous Squamous Cell Carcinomas From 53 Patients
| Bowen Disease (n = 9) | Keratoacanthoma (n = 7) | Invasive cSCC (n = 40) | P | |
|---|---|---|---|---|
| Age, mean ± SD, y | 72.2 ± 10.2 | 73.3 ± 12.4 | 79.1 ± 9.7 | .14 |
| Male sex, n (%) | 6 (66.7) | 3 (42.9) | 28 (70.0) | .38 |
| Sunburn before age 18, n (%) | 3 (33.3) | 1 (14.3) | 10 (25.0) | .68 |
| Intentional sun exposure, n (%) | 9 (100) | 7 (100) | 36 (90.0) | .42 |
| Unintentional sun exposure, n (%) | 4 (44.4) | 2 (28.6) | 27 (67.5) | .10 |
| Lack of sunscreen, n (%) | 7 (77.8) | 5 (71.4) | 38 (95.0) | .08 |
| Smoking, n (%) | 6 (66.7) | 3 (42.9) | 13 (32.5) | .16 |
| Immunosuppression, n (%) | 3 (33.3) | 1 (14.3) | 16 (40.0) | .42 |
| cSCC history, n (%) | 3 (33.3) | 0 (0) | 10 (25.0) | .26 |
| BCC history, n (%) | 0 (0) | 1 (14.3) | 4 (10.0) | .55 |
BCC = basal cell carcinoma; BD = Bowen disease; cSCC = cutaneous squamous cell carcinoma.