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Results of multivariate analysis on recurrence-free survival in the subgroup of patients with data available on negative margin widths (N = 48)
| Category (reference) | Hazard ratio | 95% CI | P |
|---|---|---|---|
| Histologic grade: G2 (vs. G1) | 9.43 | 2.38–37.43 | 0.001 |
| Tumour site: upper extremity (vs. other) | 1.60 | 0.7–38.4 | 0.763 |
| Wound closure at primary resection: primary (vs. tissue transfer) | 5.84 | 0.68–50.18 | 0.108 |
| Closest negative margin width: >1.0 cm (vs. ≤1.0 cm) | 0.01 | 0.01–0.03 | <0.001 |
CI confidence interval
