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Logistic regression analysis of impact of various prognostic factors on incidence of ulceration in melanoma cohort (N = 228).
| Prognostic factor | Chi-square | Odds Ratio | P value |
|---|---|---|---|
| Mitotic rate | 15.24 | 1.23 | .0001 |
| Tumor vascularity | 10.26 | 3.05 | .001 |
| Tumor thickness | 5.99 | 1.63 | .01 |
| High PHIP copy number | 4.10 | 1.96 | .04 |
