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Multivariate Cox regression analysis of factors related to LTP*
| Variable | Hazard ratio | 95 % Confidence interval | p value |
|---|---|---|---|
| Size (for each 5-mm increase) | 1.22 | 1.02–1.49 | 0.028 |
| Margin (for each 5-mm increase) | 0.54 | 0.36–0.79 | 0.002 |
Tumor size, margin size, and multiplicity of close margin were included in the initial multivariate analysis; multiple close margin lost its significance (p = 0.18) and therefore was removed, resulting in this “final” model
