Variables Associated with Malignancy after Multivariate Analysis
| Variable | Odds ratio | Lower 95% CI | Upper 95% CI |
|---|---|---|---|
| SUV max: increase in odds of malignancy per unit elevated SUV max | 1.54 | 1.16 | 2.05 |
| Purity: reduced odds of malignancy if pure | 0.08 | 0.03 | 0.22 |
SUV max, purity, primary site, and percentage symmetry were evaluated as potential predictors of malignancy. Both forward- and backward-selection model building yielded SUV max and purity as significant predictors of malignancy. Other indicators did not significantly improve model fit.