Table 1: Overview of The Study Participants.
Age, preoperative PSA, and Gleason score were compared using the Mann-Whitney U test. Other variable were compared using Fisher’s exact test.
Abbreviation: PSA: prostate specific antigen; NVB: neurovascularbundle; PDE5 inhibitors: phosphodiesterase type 5 inhibitors
| Item | Intervention (n=30) | Control (n=33) | p-value |
| n (%) | Mean ± SD | n (%) | Mean ± SD |
| Age | | 62.7 ± 4.1 | | 64.3 ± 3.4 | .26 |
| 50s | 9 (30.0) | | 7 (21.2) | | .10 |
| 60s | 21 (70.0) | | 26 (78.8) | |
| Occupation | 12 (40.0) | | 14 (42.4) | | .60 |
| Educational background |
| Junior high school | 5 (16.6) | | 7 (21.2) | | .56 |
| High school | 18 (60.0) | | 20 (60.6) | |
| University | 6 (20.0) | | 5 (15.1) | |
| Other | 1 (3.4) | | 1 (3.1) | |
| Family structure |
| Single | 4 (13.3) | | 2 (6.0) | | .80 |
| Couple | 17 (56.6) | | 18 (54.5) | |
| Couple and children | 4 (13.3) | | 10 (30.3) | |
| Three generation | 5 (16.8) | | 3 (9.2) | |
| Anamnesis | 19 (63.3) | | 20 (52.2) | | .19 |
| PSA (pre-surgery) | | 6.48±1.03 | | 6.63±1.98 | .48 |
| Gleason score (pre-surgery) | | 6.88±0.6 | | 6.65±0.65 | .29 |
| Less than 7 | 7 (23.3) | | 10 (30.3) | | .42 |
| 7 | 15 (60.0) | | 20 (66.6) | |
| More than 7 | 5 (16.7) | | 3 (3.1) | |
| NVB |
| Both resection | 20 (66.6) | | 21 (56.5) | | .57 |
| One resection | 10 (33.4) | | 12 (43.5) | |
| PDE5 inhibitors | 3 (10.0) | | 3 (9.0) | | .48 |
| Anticholinergic drug | 6 (20.0) | | 9 (27.2) | | .46 |