Table 2.
Association Between Sunlight Exposure–Related Factors in Cases With Cutaneous Basal Cell Carcinoma (BCC) or Squamous Cell Carcinoma (SCC) and Controls
| BCC Cases (n = 204) |
SCC Cases (n = 156) |
||||
|---|---|---|---|---|---|
| Sunlight-Related Factor | Controls, No. (%) (n = 297) | No. (%) | OR (95% CI)a | No. (%) | OR (95% CI)a |
| Cutaneous sensitivity | |||||
| Mild sunburn turns to tan/tan | 177 (60.0) | 80 (40.0) | 1.00 (reference) | 65 (42.8) | 1.00 (reference) |
| Sunburn/blistering | 118 (40.0) | 120 (60.0) | 2.75 (1.84–4.11) | 87 (57.2) | 2.39 (1.53–3.74) |
| Tanning ability | |||||
| Tan easily | 173 (59.3) | 96 (48.5) | 1.00 (reference) | 56 (36.8) | 1.00 (reference) |
| Tan after working at it/unable to tan | 119 (40.8) | 102 (51.5) | 2.23 (1.48–3.34) | 96 (63.2) | 4.09 (2.52–6.64) |
| History of blistering sunburn | |||||
| No | 92 (31.3) | 52 (25.7) | 1.00 (reference) | 35 (23.0) | 1.00 (reference) |
| Yes | 202 (68.7) | 150 (74.3) | 1.59 (1.04–2.46) | 117 (77.0) | 1.79 (1.08–2.96) |
| Cumulative sunlight exposure | |||||
| Low | 82 (32.5) | 51 (28.7) | 1.00 (reference) | 31 (22.0) | 1.00 (reference) |
| High | 170 (67.5) | 127 (71.4) | 1.21 (.77–1.89) | 110 (78.0) | 1.85 (1.08–3.15) |
Abbreviations: BCC, basal cell carcinoma; CI, confidence interval; OR, odds ratio; SCC, squamous cell carcinoma.
aValues are adjusted for age and sex.