Table 1.
List of the main variables, number of original studies and related subjects per variable
| Variable | Studies (%) N = 39 | Melanoma cases (%) n = 7806 | NMSC cases (%) n = 3151 | Controls (%) n = 14875 |
|---|---|---|---|---|
| Age |
37 (95%) |
7761 (99%) |
3150 (100%) |
14550 (98%) |
| Gender |
39 (100%) |
7801 (100%) |
3151 (100%) |
14853 (100%) |
| Ethnicity |
38 (97%) |
6770 (87%) |
3142 (100%) |
13833 (93%) |
| Body mass index |
8 (21%) |
557 (7%) |
1380 (44%) |
2226 (15%) |
| Smoking status |
6 (15%) |
2266 (29%) |
419 (13%) |
2286 (15%) |
| Intermittent sun exposure |
21 (54%) |
4493 (58%) |
1266 (40%) |
2286 (15%) |
| Continuous sun exposure |
21 (54%) |
4909 (62%) |
741 (24%) |
1938 (13%) |
| Sunburns |
25 (64%) |
4210 (54%) |
1288 (41%) |
2968 (20%) |
| Artificial UV exposure |
16 (41%) |
3842 (49%) |
298 (9%) |
1058 (7%) |
| Family history of skin cancer |
27 (69%) |
6660 (85%) |
1289 (41%) |
3318 (22%) |
| Family history of cancer other than skin |
19 (49%) |
4445 (57%) |
371 (12%) |
1630 (11%) |
| Melanoma body site |
24 (62%) |
6271 (80%) |
NA |
NA |
| Melanoma histology |
19 (49%) |
4868 (62%) |
NA |
NA |
| Breslow thickness |
24 (62%) |
5907 (76%) |
NA |
NA |
| Hair color |
34 (87%) |
6841 (88%) |
2590 (82%) |
11889 (80%) |
| Eye color |
31 (79%) |
5990 (77%) |
2456 (78%) |
10720 (72%) |
| Skin color |
23 (59%) |
3517 (45%) |
826 (26%) |
2963 (20%) |
| Skin type |
31 (79%) |
6590 (84%) |
1992 (63%) |
4540 (31%) |
| Common nevi |
19 (49%) |
3817 (49%) |
442 (14%) |
1181 (8%) |
| Atypical nevi |
11 (28%) |
2681 (34%) |
642 (20%) |
1447 (10%) |
| Freckles |
21 (54%) |
4028 (52%) |
737 (23%) |
2333 (16%) |
| Solar lentigines | 6 (15%) | 1419 (18%) | 442 (14%) | 1088 (7%) |
NA = not applicable; NMSC = non melanoma skin cancer.