Table 2.
Median DmtDNA4977 levels by selected known risk factors between melanoma cases and healthy controls
| Cases (n=206) | Controls (n=219) | P value* | |
|---|---|---|---|
| Overall (median) | 0.38 | 0.20 | 0.008 |
| Age (y) | |||
| ≤47 | 0.36 | 0.19 | 0.350 |
| >47 | 0.42 | 0.22 | 0.010 |
| P value# | 0.617 | 0.261 | |
| Gender | |||
| Male | 0.40 | 0.23 | 0.061 |
| Female | 0.35 | 0.13 | 0.027 |
| P value# | 0.670 | 0.871 | |
| Hair color | |||
| Black or brown | 0.37 | 0.21 | 0.100 |
| Blond or red | 0.38 | 0.19 | 0.018 |
| P value# | 0.613 | 0.607 | |
| Eye color | |||
| Not blue | 0.25 | 0.21 | 0.287 |
| Blue | 0.42 | 0.18 | 0.003 |
| P value# | 0.051 | 0.662 | |
| Skin color | |||
| Dark brown | 0.29 | 0.21 | 0.104 |
| Fair | 0.49 | 0.19 | 0.007 |
| P value# | 0.046 | 0.562 | |
| Tanning ability after prolonged sun exposure | |||
| Average or deep | 0.49 | 0.32 | 0.313 |
| Light or none | 0.34 | 0.16 | 0.005 |
| P value# | 0.595 | 0.198 | |
| Lifetime sunburns with blistering | |||
| 0 | 0.27 | 0.22 | 0.468 |
| ≥1 | 0.37 | 0.17 | 0.005 |
| P value# | 0.538 | 0.283 | |
| Freckling in the sun as a child | |||
| No | 0.33 | 0.27 | 0.168 |
| Yes | 0.41 | 0.20 | 0.010 |
| P value# | 0.843 | 0.826 | |
| Reported use of sunlamp | |||
| No | 0.35 | 0.17 | 0.017 |
| Yes | 0.39 | 0.24 | 0.123 |
| P value# | 0.512 | 0.565 | |
*
The P-value comparing median DmtDNA4977 levels between cases and controls.
#
The P-value comparing median DmtDNA4977 levels between groups defined by selected characteristics.