Table 1: Patient characteristics.

Characteristics(%)

Age, years
 Range53 – 81
 Median66
PSA before RP
 Range3.3–58.0
 Median8.1
 ≥54681%
 <51119%
PSA after RP
 Range0.1–1.8
 Median0.4
 ≥0.25189%
 <0.2611%
Pathological stage
 pT2a59%
 pT2b814%
 pT2c2544%
 pT3a1425%
 pT3b59%
 pT400%
Surgical margins
 Positive2951%
 Negative2849%
Gleason score
 ≤62340%
 73256%
 ≥824%
Type of IMRT
 5 coplanar fields4579%
 VMAT (RapidArc)1221%
Androgen deprivation
 Yes4477%
 Short course (<9 months)3765%
 Long course712%
 No1323%

VMAT: volumetric intensity-modulated arc therapy.