From: Particle beam radiation therapy using carbon ions and protons for oligometastatic lung tumors
Variable | No. of patients | P value | Adjusted HR (95% CI) |
---|---|---|---|
Univariate analysis | Â | Â | Â |
Age | Â | Â | Â |
  <60 years | 17 | 0.956 |  |
  ≥60 years | 30 |  |  |
Gender | Â | Â | Â |
  Male | 29 | 0.396 |  |
  Female | 18 |  |  |
Performance status | Â | Â | Â |
  0 | 30 | 0.447 |  |
  ≥1 | 17 |  |  |
Primary tumor site | Â | Â | Â |
  Colorectum | 11 | 0.080 |  |
  Others | 36 |  |  |
Tumor diameter | Â | Â | Â |
  <20 mm | 21 | 0.237 |  |
  ≥20 mm | 26 |  |  |
BED10 | Â | Â | Â |
  <110 GyE | 25 | 0.048 |  |
  ≥110 GyE | 22 |  |  |
Beam type | Â | Â | Â |
  Proton | 18 |  |  |
  Carbon ion | 23 | 0.800 |  |
  Proton and carbon ion | 6 |  |  |
Multivariate analysis | Â | Â | Â |
  Primary tumor site |  | 0.287 | 2.666 (0.439-16.195) |
  BED10 |  | 0.392 | 2.558 (0.298-21.996) |