Table 1 Characteristics for all participants by personal history of skin cancer, N = 1,118
Parameter | Negative personal history of skin cancer | Positive personal history of skin cancer | p |
|---|---|---|---|
(n = 968) | (n = 150) | ||
Age, mean (SD), in years | 45.4 (14.6) | 61.6 (11.6) | <0.0001 |
Family history of skin cancer, n (%) | 286 (30) | 82 (55) | <0.0001 |
Type of family history of skin cancer, n (%)c | |||
 Basal cell carcinoma | 123 (43) | 66 (80) | <0.0001 |
 Squamous cell carcinoma | 58 (20) | 31 (38) | 0.0012 |
 Melanoma | 73 (26) | 19 (23) | 0.6528 |
 Other | 1 (0.4) | 1 (1.2) | 0.3464 |
 Don’t know | 80 (28) | 7 (8) | 0.0002 |
Skin type (Fitzpatrick), n (%) | 0.001 | ||
 1 | 71 (7) | 9 (6) | |
 2 | 350 (36) | 80 (53) | |
 3 | 315 (33) | 35 (23) | |
 4 + 5 + 6 | 232 (24) | 26 (17) | |
Tanning bed use by number of visits,a n (%) | 0.1017 | ||
 0 | 537 (55) | 100 (67) | |
 1–5 | 157 (16) | 18 (12) | |
 6–10 | 85 (9) | 11 (7) | |
 11–100 | 152 (16) | 19 (13) | |
 >100 | 37 (4) | 2 (1) | |
Lifetime number of blistering sunburns, n (%) | <0.0001 | ||
 0 | 165 (17) | 14 (9) | |
 1–5 | 524 (54) | 72 (48) | |
 6–10 | 162 (17) | 25 (17) | |
 >10 | 117 (12) | 39 (26) | |
Age at first skin cancer diagnosis, mean (SD), in years | NA | 51.4 (13.8) | NA |
Type of first skin cancer diagnosis, n (%) | Â | ||
 Basal cell carcinoma | NA | 93 (62) | NA |
 Squamous cell carcinoma | 20 (13) | ||
 Melanoma | 17 (11) | ||
 Other | 7 (5) | ||
 Don’t know | 13 (9) | ||
Factor score, median (range)d | 0.2 (−2.0 – 2.2) | −0.2 (−2.3 – 1.4) | <0.0001 |
Lifetime total hours of exposure, median (range) | 37,128 (2,496 – 156,520) | 55,172 (14,976 – 157,248) | <0.0001 |
CUESb, median (range) | 180,708 (11,288 – 778,332) | 241,873 (44,858 – 898,344) | <0.0001 |