Table 4 Univariate analysis of local control at one and two years per target (n = 153)
Local control per target at 1 year (%) | Local control per target at 2 years (%) | p* | |
|---|---|---|---|
Total dose | |||
= 45 Gy | 92.3 (82.1 – 96.8) | 79.1 (61.6 – 89.3) | |
< 45 Gy | 72.0 (56.4 – 82.8) | 66.5 (50.3 – 78.5) | 0.019 |
Target diameter | |||
> 50 mm | 74.6 (54.6 – 86.8) | 63.0 (39.8 – 79.3) | |
< 50 mm | 87.5 (77.9 – 93.1) | 78.8 (65.9 – 87.3) | 0.019 |
GTV volumes | |||
> 100 cc | 81.8 (58.5 – 92.8) | 62.3 (31.0 – 82.6) | |
< 100 cc | 84.4 (74.9 – 90.5) | 76.8 (64.9 – 85.0) | 0.063 |
PTV volumes | |||
> 200 cc | 72.6 (50.3 – 86.2) | 59.9 (35.3 – 77.7) | |
< 200 cc | 87.2 (78.0 – 92.8) | 79.0 (66.7 – 87.2) | 0.014 |