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Table 2 Patient characteristics

From: Volumetric and dosimetric comparison of organs at risk between the prone and supine positions in postoperative radiotherapy for prostate cancer

Variable

(N = 17)

 

n (%)

Age, median (range) in years

71 (67–84)

Body mass index, median (range)

23.5 (20.3–26.7)

Gleason score

 ≤7

7(41.2%)

 ≥8

10 (58.8%)

Resection margins

 R0

7 (41.2%)

 R1

10 (58.8%)

Extracapsular invasion

 No

6 (35.3%)

 Yes

11 (64.7%)

Seminal vesicle invasion

 No

8 (47.1%)

 Yes

9 (52.9%)

Lymphadenectomy performed

 No

3 (17.6%)

 Yes

14 (82.4%)

Lymph node classification

 N0

16 (94.1%)

 N1

1 (5.9%)

Adjuvant or salvage

 Adjuvant

7 (41.2%)

 Salvage

10 (58.8%)

 Interval between surgery and RT start, median (range) in months

24.9 (2.0–188.0)

Treatment position

 Prone

15 (88.2%)

 Supine

2 (11.8%)

ADT during RT

 No

9 (47.1%)

 Yes

8 (52.9%)

  1. Abbreviations RT radiotherapy, VMAT volumetric modulated arc therapy, ADT androgen deprivation therapy