Table 2.
Multiple regression analysis
| CTV under-dosage | p-value |
|---|---|
| Rectum moved anteriorly |
0.029 |
| Rectum reduced in volume |
0.01 |
| Reduction in the Dice’s coefficient |
0.005 |
|
Bowel doses increase |
p-value |
| Bladder moved anteriorly |
0.01 |
| Bladder reduced in volume |
0.0046 |
|
Rectal doses increase |
p-value |
| Rectal volume increased |
0.0026 |
| CTV-SIB moved anteriorly |
0.00001 |
|
Bladder doses increase |
p-value |
| Bladder moved posteriorly |
0.01 |
| CTV-SIB reduced in volume | 0.01 |
Independent factors contributing to the clinical target volume - simultaneous integrated boost (CTV-SIB) under-dosage and organs at risk (OAR) over-dosage.