Table 1.
Characteristics of subjects with and without cutaneous SCC
| Cases (n=85) no./total (%) | Controls (n=95) no./total (%) | P-value | |
|---|---|---|---|
| Age (mean years±SD) | 72.9±12.9 | 70.3±9.2 | 0.13 |
|
| |||
| Female gender | 22/85 (26%) | 25/95 (26%) | 0.95 |
|
| |||
| Family history of skin cancer | 11/65 (17%) | 14/91 (15%) | 0.80 |
|
| |||
| Education > high school | 39/66 (59%) | 59/93 (63%) | 0.58 |
|
| |||
| History of warts | 32/65 (49%) | 56/94 (60%) | 0.20 |
|
| |||
| Ever smoker | 38/67 (57%) | 68/95 (72%) | 0.05 |
|
| |||
| Exposure to radiation | 12/66 (18%) | 7/93 (8%) | 0.04 |
|
| |||
| Burn scars | 2/65 (3%) | 12/94 (13%) | 0.03 |
|
| |||
| History of freckling | 24/64 (38%) | 17/93 (18%) | 0.007 |
|
| |||
| Ever used tanning beds | 4/67 (6%) | 21/94 (22%) | 0.005 |
|
| |||
| Propensity to sunburn | <0.0001 | ||
| Burns, blisters | 8/66 (12%) | 7/95 (7%) | |
| Burns, no blisters | 26/66 (39%) | 12/95 (13%) | |
| Mild burn, tans | 26/66 (39%) | 41/95 (43%) | |
| No burn | 6/66 (9%) | 35/95 (37%) | |
SCC, squamous cell carcinoma.