Table 1.
Patients’ characteristics and technical data
| Median [IQR] | N | |
|---|---|---|
| Age | 74 [70–77] | 100 |
| Weight (kg) | 78 [70–88.5] | 60 |
| BMI (kg/m2) | 25.5 [23–28.8] | 56 |
| Technique (n (%)) | 100 | |
| VMAT | 54 | |
| Tomotherapy | 20 | |
| Stereotactic radiotherapy | 26 | |
| Total physical dose to prostate (Gy) | 78 [40–80] | 100 |
| Number of fractions | 39 [5-39] | 100 |
| EQD21.5 to prostate (Gy) | 80 [78–108.6] | 100 |
| Pelvic nodes irradiation | 100 | |
| Yes | 54 | |
| No | 46 | |
| Testicular volume (cc) | 54.8 [43–70] | 100 |
| Distance between inferior contour of CTV and testicle (mm) | 51 [41–60] | 100 |
IQR interquartile range, BMI body mass index, VMAT volumetric modulated arc-therapy, EQD21.5 equivalent dose in 2Gy fractions considering an α/β ratio of 1.5Gy, CTV clinical target volume