Table 1.
Characteristics | SCC Cases N (%) |
Controls N (%) |
---|---|---|
Reference age | ||
24–59 | 122 (35) | 122 (37) |
60–64 | 112 (32) | 92 (28) |
65–69 | 112 (32) | 117 (35) |
Gender | ||
Male | 198 (57) | 185 (56) |
Female | 148 (43) | 146 (44) |
Skin sensitivity to first solar exposurea | ||
Tan | 18 (5) | 70 (21) |
Mild burn then tan | 165 (48) | 162 (49) |
Burn then peel | 134 (39) | 77 (23) |
Burn then blister | 27 (8) | 22 (7) |
Number of painful sunburnsa | ||
None | 50 (16) | 69 (25) |
1–2 | 52 (17) | 61 (22) |
≥ 3 | 212 (68) | 142 (52) |
NSAID medication usea,b | ||
Never | 219 (44) | 191 (41) |
Ever | 280 (56) | 280 (60) |
Photosensitizing medication usea | ||
Never | 73 (23) | 70 (23) |
Ever | 249 (77) | 234 (77) |
Skin sensitivity missing from two SCC cases. Number of painful sunburns missing from 59 control and 32 SCC case subjects. NSAID medication use missing from one SCC case. Photosensitizing medication use is missing from 27 control and 24 SCC case subjects.
NSAID use defined as use at least 4 times a week for at least a month