Table 3.

Relative risks for SCC for the overall population as well as stratified by sex, age, skin type, and propensity to burn

betaPV ABN (%)Person yearsNumber of participants with SCC (% of total in the stratum)Incidence rate/100,000/person yearsAdjusted HR
Alla (n = 1,311)
 Absent437 (33)4,72744 (10)9311.0
 Present874 (67)8,894106 (12)1,1921.0 (0.7–1.4)
Menb (n = 571)
 Absent157 (27)1,71520 (13)1,1661.0
 Present414 (73)4,11851 (12)1,2380.7 (0.4–1.1)
Womenb (n = 740)
 Absent280 (38)3,01224 (9)7971.0
 Present460 (62)4,77655 (12)1,1521.3 (0.8–2.0)
<50 yearsc (n = 730)
 Absent255 (35)2,9498 (3)2711.0
 Present475 (65)5,22430 (6)5742.1 (1.0–4.6)
50+ yearsc (n = 581)
 Absent182 (31)1,77836 (20)2,0251.0
 Present399 (69)3,67076 (19)2,0710.8 (0.5–1.2)
Fair skina (n = 722)
 Absent238 (33)2,65025 (11)9431.0
 Present484 (67)4,87373 (15)1,4981.3 (0.8–2.0)
Medium/olive skina (n = 588)
 Absent199 (34)2,07819 (10)9141.0
 Present389 (66)4,02133 (8)8210.6 (0.3–1.1)
Always burna (n = 256)
 Absent79 (31)89211 (14)1,2331.0
 Present177 (69)1,69742 (24)2,4751.1 (0.6–2.1)
Burn-tan/only tana (n = 1,054)
 Absent358 (34)3,83633 (9)8601.0
 Present696 (66)7,19764 (9)8890.9 (0.6–1.3)

aHR adjusted for age and sex.

bHR adjusted for age.

cHR adjusted for sex.