Univariate Analysis with Cox Regression
| Parameter | B | SE | Wald | df | P | Exp(B) | 95.0% CI for Exp(B) |
| SUVmax 1 | 0.010 | 0.020 | 0.257 | 1 | 0.612 | 1.010 | 0.972–1.050 |
| SUVmax 2 | 0.057 | 0.030 | 3.629 | 1 | 0.057 | 1.058 | 0.998–1.122 |
| ΔSUVmax | −3.089 | 1.277 | 5.849 | 1 | 0.016* | 0.046 | 0.004–0.557 |
| SUVmean 1 | 0.000 | 0.050 | 0.000 | 1 | 0.999 | 1.000 | 0.907–1.103 |
| SUVmean 2 | 0.141 | 0.059 | 5.640 | 1 | 0.018* | 1.152 | 1.025–1.294 |
| ΔSUVmean | −7.693 | 1.477 | 27.126 | 1 | <0.001* | 0.000 | 0.000–0.008 |
| MTV 1 | 0.004 | 0.003 | 2.621 | 1 | 0.105 | 1.004 | 0.999–1.010 |
| MTV 2 | 0.009 | 0.003 | 8.659 | 1 | 0.003* | 1.009 | 1.003–1.014 |
| ΔMTV | −12.153 | 1.990 | 37.306 | 1 | <0.001* | 0.000 | 0.000–0.000 |
| Pathology | −0.418 | 0.285 | 2.151 | 1 | 0.142 | 0.658 | 0.377–1.151 |
| Location | 0.635 | 0.450 | 1.991 | 1 | 0.158 | 1.886 | 0.781–4.553 |
| Chemotherapy | 0.001 | 0.147 | 0.000 | 1 | 0.994 | 1.001 | 0.751–1.335 |
| Stage | −0.468 | 0.346 | 1.831 | 1 | 0.176 | 0.626 | 0.318–1.233 |
| Sex | 0.000 | 0.376 | 0.000 | 1 | 0.999 | 1.000 | 0.479–2.091 |
| Age | 0.006 | 0.018 | 0.095 | 1 | 0.758 | 1.006 | 0.971–1.042 |
| Radiotherapy dose | 0.035 | 0.037 | 0.914 | 1 | 0.339 | 1.036 | 0.964–1.112 |
| RECIST | 1.488 | 0.293 | 25.871 | 1 | <0.001* | 4.430 | 2.497–7.862 |
↵* Statistically significant.
B = coefficient for constant; Wald = Wald χ2; Exp(B) = exponentiation of B coefficient; CI = confidence interval; SUVmax 1 = SUVmax of pretreatment PET/CT; SUVmax 2 = SUVmax of intratreatment PET/CT; ΔSUVmax = decrease in SUVmax; SUVmean 1 = SUVmean of pretreatment PET/CT; SUVmean 2 = SUVmean of intratreatment PET/CT; ΔSUVmean = decrease in SUVmean; MTV 1 = MTV of pretreatment PET/CT; MTV 2 = MTV of intratreatment PET/CT; ΔMTV = decrease in MTV; RECIST = Response Evaluation Criteria in Solid Tumors.