Table 1.

Distribution of clinical risk factors in the whole testing data and the beta coefficients

Risk factor	β coefficient	Case, N = 613	Control, N = 108 984
Hair color
Black/brown	0	205 (33.4%)	45 954 (42.2%)
Light brown	0.22	251 (40.9%)	45 436 (41.7%)
Blonde	0.91	111 (18.1%)	12 672 (11.6%)
Red	1.46	46 (7.5%)	4922 (4.5%)
Lifetime sunbed use
None	0	558 (91.0%)	98 681 (90.5%)
1–10	−0.05	40 (6.5%)	7397 (6.8%)
>10	0.46	15 (2.4%)	2906 (2.7%)
Non-melanoma skin cancer
No	0	582 (94.9%)	106 772 (98.0%)
Yes	1.16	31 (5.1%)	2212 (2.0%)