Univariate logistic regression model of factors predictive of recurrence and complications.
| Recurrence | Complications | |||
| Variable | Odd Ratio (95% CI) | P | Odds Ratio (95% CI) | P |
| Age | 0.99 (0.96–1.02) | 0.407 | 1.04 (1.02–1.06) | 0.001 |
| Gender (female vs male) | 1.75 (0.67–1.56) | 0.252 | 0.85 (0.43–1.70) | 0.650 |
| Metastatic disease (vs benign primary) | 0.66 (0.16–2.70) | 0.560 | 5.61 (2.17–14.52) | <0.001 |
| Primary malignancy (vs benign primary) | 3.30 (1.19–9.13) | 0.022 | 0.63 (0.28–1.40) | 0.254 |
| Primary malignancy (vs metastatic disease) | 5.03 (1.31–19.30) | 0.018 | 0.78 (0.07–0.46) | <0.001 |
| Extra compartmental tumor (vs intra- compartmental tumor) | 7.5 (0.9–61.8) | 0.060 | 0.50 (0.16–1.52) | 0.223 |
| Combined approach (vs single approach) | 1.29 (0.27–6.24) | 0.749 | - | - |
| Adjuvant chemo and/or radiotherapy (vs no adjuvant treatment) | 0.97 (0.32–2.93) | 0.95 | 20.31 (5.21–79.21) | 0.001 |
| Intra-lesional margins (vs complete resection) | 5.17 (1.45–18.4) | 0.011 | 1.0 (0.00−E) | 1 |
| Marginal (vs complete resection) | 1.03 (0.17–6.29) | 0.97 | 1.0 | 1 |