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Table 5 Univariate and multivariate analysis for radiographic predictors of Local Control (LC) for CF-EBRT patients

From: Local Control Rates of Metastatic Renal Cell Carcinoma (RCC) to Thoracic, Abdominal, and Soft Tissue Lesions Using Stereotactic Body Radiotherapy (SBRT)

  Univariate Multivariate
Variable P-value HR (95 % CI) P-value
Total Dose (Gy) 0.025* 0.994 (0.986 to 1.003) 0.216
Number of Fractions 0.114 0.872 (0.698 to 1.090) 0.232
Dose per Fractions (≥9 Gy) 0.950 0.729 (0.195 to 2.725) 0.640
BED (100 Gy) 0.017* 3.94 (0.028 to 2.345) 0.325
Site (Thorax vs Other) 0.867 1.579 (0.404 to 6.173) 0.513
Time from Primary Diagnosis 0.714 0.987 (0.961 to 1.015) 0.386
Male Gender 0.653 1.003 (0.244 to 4.128) 0.995
Age 0.560 0.953 (0.860 to 1.056) 0.366
Smoker 0.172 - -
Greater than 5 Metastatic Lesions 0.933 0.886 (0.216 to 3.623) 0.867
Pre-Radiation Systemic Therapy 0.536 2.340 (0.586 to 9.345) 0.231
Post-Radiation Systemic Therapy 0.417 0.206 (0.035 to 1.242) 0.086
  1. BED biologic effective dose, HR hazard ration, CI confidence interval
  2. *-Statistically significant values