Parameter | Non-spacer group | Spacer group | P value |
---|---|---|---|
N = 30 | N = 8 |  | |
Age, years, median (range) | 73 (58–85) | 79 (66–84) | 0.22b |
Body mass index, mean ± SD | 23.5 ± 2.7 | 23.6 ± 3.4 | 0.93b |
Clinical T stage, n (%) | Â | Â | 0.78c |
 1c | 6 (20%) | 3 (37.5%) |  |
 2a | 13 (43.3%) | 2 (25.0%) |  |
 2b | 2 (6.7%) | 1 (12.5%) |  |
 2c | 5 (16.7%) | 2 (25.0%) |  |
 3a | 1 (3.3%) | 0 (0%) |  |
 3b | 2 (6.7%) | 0 (0%) |  |
 4 | 1 (3.3%) | 0 (0%) |  |
Mean monitoring time, seconds, mean ± SD | 275 ± 42 | 279 ± 33 | 0.82b |
Neoadjuvant ADT, n (%) | Â | Â | 0.99c |
 No | 9 (30.0%) | 2 (25.0%) |  |
 Yes | 21 (70.0%) | 6 (75.0%) |  |
History of abdominal surgery, n (%) | Â | Â | 0.65c |
 No | 21 (70.0%) | 7 (87.5%) |  |
 Yes | 9 (30.0%) | 1 (12.5%) |  |
Prostate volume*, cc, mean ± SD | 31.1 ± 12.4 | 25.0 ± 9.2 | 0.22b |
Rectum volume*a, cc, mean ± SD | 55.4 ± 15.5 | 43.4 ± 9.0 | 0.047b†|
Bladder volume*, cc, mean ± SD | 277.1 ± 169.2 | 205.1 ± 77.9 | 0.26b |