Table 4 Cox regression analysis for time to Overlap/Marginal failure (Near misses)
Overall Cohort (n = 96) | Definitive SBRT Subgroup (n = 89) | |||||||
|---|---|---|---|---|---|---|---|---|
Univariate | Multivariate | Univariate | Multivariate | |||||
p | HR (95% CI) | p | HR (95% CI) | p | HR (95% CI) | p | HR (95% CI) | |
PET-CT Planning | 0.042 | 0.48 (0.23, 0.98) | 0.042 | 0.48 (0.23, 0.98) | 0.012 | 0.40 (0.19, 0.82) | 0.009 | 0.40 (0.19, 0.79) |
Tumor volume (5 cc increase) | 0.415 | 0.98 (0.92, 1.03) | 0.323 | Not entered | 0.514 | 0.98 (0.92, 1.04) | 0.605 | Not entered |
Cetuximab with SBRT | 0.304 | 0.70 (0.35, 1.39) | 0.337 | Not entered | 0.089 | 0.54 (0.27, 1.10) | 0.066 | 0.51 (0.25, 1.04) |
Interval from previous radiation to recurrence (3 months increase) | ||||||||
0.512 | 0.99 (0.96, 1.02) | 0.604 | Not entered | 0.596 | 0.99 (0.96, 1.02) | 0.963 | Not entered | |