Table 4 Multivariate analysis (Cox model) or risk for local recurrence (at Any Time) among 740 patients in the Intergroup trial and Intergroup nonrandomized subgroup
Factor | Risk ratio | p value |
|---|---|---|
Tumor ulceration | 6.3 | 0.001 |
Anatomic site: | ||
Head/neck | 9.4 | 0.01 |
Extremity | 3.5 | 0.14 |
Trunk | 2.5 | 0.24 |
Tumor thickness (<2.0 mm versus >2 mm) | 2.0 | 0.14 |
Surgical margin (2 cm versus 4 cm) | 1.0 | 0.79 |
Surgical wound closure (skin graft versus primary closure) | 0.9 | 0.75 |