Table 3.
Univariate Cox proportional-hazards regression (metric variables) with respect to PFS and OAS
| Variable | PFS | OAS | ||||
|---|---|---|---|---|---|---|
| HR | 95%-CI | p-value | HR | 95%-CI | p-value | |
| SUVmax | 1.00 | 0.94 - 1.06 | 0.94 | 0.97 | 0.91 - 1.05 | 0.48 |
| SUVmean | 0.99 | 0.88 - 1.10 | 0.80 | 0.91 | 0.78 - 1.06 | 0.21 |
| MTV | 1.00 | 1.00 - 1.01 | 0.49 | 1.01 | 1.00 - 1.01 | 0.07 |
| TLG | 1.00 | 1.00 - 1.00 | 0.89 | 1.00 | 1.00 - 1.00 | 0.21 |
| ASP | 1.01 | 1.00 - 1.03 | 0.009 | 1.02 | 1.00 - 1.03 | 0.03 |
| Solidity | 0.97 | 0.93 - 1.01 | 0.12 | 0.98 | 0.92 – 1.03 | 0.39 |
| Gender: female | 1.05 | 0.44 - 2.46 | 0.92 | 0.44 | 0.10 - 1.95 | 0.28 |
| Histology: adenocarcinoma | 0.90 | 0.21 - 3.90 | 0.89 | 1.04 | 0.13 - 8.17 | 0.97 |
| Histology: SCC | 0.44 | 0.09 - 2.07 | 0.30 | 0.70 | 0.08 - 5.98 | 0.74 |
| Localization: central | 0.68 | 0.31 - 1.47 | 0.33 | 2.23 | 0.81 - 6.10 | 0.12 |
| T stage (TNM): T3/T4 | 0.71 | 0.31 - 1.61 | 0.41 | 1.24 | 0.45 - 3.42 | 0.68 |
| UICC stage: III A-B | 0.97 | 0.47 - 2.01 | 0.93 | 2.10 | 0.73 - 6.05 | 0.17 |
| Surgery: no | 1.90 | 0.91 - 3.97 | 0.09 | 3.56 | 1.29 - 9.83 | 0.01 |
| Radiotherapy: no | 0.66 | 0.31 - 1.41 | 0.28 | 0.40 | 0.13 - 1.26 | 0.12 |
| Chemotherapy: no | 0.66 | 0.23 - 1.91 | 0.45 | 0.59 | 0.13 - 2.60 | 0.49 |
The respective hazard ratio (HR), 95%-confidence interval (95%-CI) and p-value are displayed. SCC = squamous cell cancer; RTx = radiotherapy; CTx = chemotherapy; RCTx = radiochemotherapy.
Significant p-values are indicated by bold numbers.