Table 4 Radiation therapy dosimetric data and the relationship of oesophageal dose with grade of acute oesophagitis
All patients (n = 54) | Only patients receiving pre-specified dose to the oesophagus | ||||||
|---|---|---|---|---|---|---|---|
Variable | Mean | sd | Spearman correlation | p-value | n | Spearman correlation | p-value |
Dmax (Gy) | 50.2 | 18.0 | 0.143 | 0.302 | - | - | - |
Dmean (Gy) | 20.8 | 10.8 | 0.269 | 0.049 | - | - | - |
VO20 | 43.9 | 23.1 | 0.306 | 0.024 | 51 | 0.355 | 0.011 |
VO25 | 40.8 | 22.1 | 0.297 | 0.029 | 50 | 0.303 | 0.033 |
VO30 | 34.8 | 23 | 0.238 | 0.083 | 49 | 0.269 | 0.062 |
VO35 | 30.8 | 24.4 | 0.201 | 0.146 | 43 | 0.337 | 0.027 |
VO40 | 26.9 | 23.9 | 0.162 | 0.243 | 41 | 0.302 | 0.055 |
VO45 | 23.8 | 23 | 0.163 | 0.24 | 38 | 0.310 | 0.058 |
VO50 | 21.1 | 21.1 | 0.152 | 0.273 | 38 | 0.289 | 0.078 |
VO55 | 17.1 | 19.1 | 0.124 | 0.371 | 37 | 0.290 | 0.081 |
VO60 | 6.9 | 10.9 | 0.104 | 0.455 | 25 | 0.591 | 0.002 |
LPO20 | 48.9 | 21 | 0.205 | 0.136 | 51 | 0.240 | 0.090 |
LPO30 | 42.2 | 21.4 | 0.134 | 0.336 | 50 | 0.107 | 0.458 |
LPO40 | 34.2 | 24.7 | 0.106 | 0.448 | 41 | 0.206 | 0.196 |
LPO50 | 29.9 | 24 | 0.101 | 0.469 | 38 | 0.189 | 0.255 |
LPO60 | 12.5 | 16.1 | 0.048 | 0.728 | 27 | 0.428 | 0.026 |
LWO20 | 29.8 | 22.7 | 0.319 | 0.019 | 43 | 0.185 | 0.236 |
LWO30 | 20.5 | 20.4 | 0.250 | 0.068 | 36 | 0.148 | 0.389 |
LWO40 | 14.4 | 18.6 | 0.231 | 0.093 | 30 | 0.248 | 0.186 |
LWO50 | 8.6 | 14.1 | 0.210 | 0.128 | 20 | 0.214 | 0.364 |
LWO60 | 1 | 3.8 | 0.139 | 0.316 | 6 | 0.147 | 0.781 |