Table I.
Demographic characteristics, sun sensitivity and sun burn history by basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) status.
| Control (n=462) |
BCC (n=487) |
SCC (n=535) |
|
|---|---|---|---|
| Characteristic | N(%) | N(%) | N(%) |
| Age | |||
| < 52 | 97 (21.0) | 131 (26.9) | 65 (12.2) |
| 52-61 | 102 (22.1) | 136 (27.9) | 117 (21.9) |
| 62-67 | 101 (21.9) | 87 (17.9) | 124 (23.2) |
| 68-71 | 91 (19.7) | 84 (17.3) | 134 (25.1) |
| 72 + | 71 (15.4) | 49 (10.1) | 95 (17.8) |
| Gender | |||
| male | 271 (58.7) | 261 (53.6) | 328 (61.3) |
| female | 191 (41.3) | 226 (46.4) | 207 (38.7) |
| Skin reaction to acute sun | |||
| tan | 313 (67.9) | 260 (53.6) | 307 (57.7) |
| burn | 148 (32.1) | 225 (46.4) | 225 (42.3) |
| Lifetime # painful sunburns | |||
| 0 | 138 (31.2) | 117 (24.7) | 134 (26.0) |
| 1 | 79 (17.8) | 61 (12.9) | 77 (15.0) |
| 2 | 43 (9.7) | 38 (8.0) | 39 (7.6) |
| 3+ | 183 (41.3) | 257 (54.3) | 265 (51.5) |
| Lifetime cumulative sun exposure in warm months | |||
| < 15328 hours | 216 (50.0) | 252 (54.2) | 190 (37.6) |
| 15328+ hours | 216 (50.0) | 213 (45.8) | 315 (62.4) |
| Number of cigarettes smoked per day | |||
| 0 | 167 (36.4) | 196 (40.3) | 172 (32.3) |
| >0-20 | 208 (45.3) | 209 (42.9) | 246 (46.3) |
| >20 | 84 (18.3) | 82 (16.8) | 114 (21.3) |
Missing data: skin reaction to acute sun (1 control, 2 BCC, 3 SCC); lifetime sunburns (19 controls, 14 BCC, 20 SCC); lifetime sun exposure (30 controls, 22 BCC, 30 SCC); number of cigarettes (3 controls, 3 SCC)