Table 1.
Characteristics of the selected studies.
| Study. 1. Year 2. Country 3. Data Collection |
Group | N | Age * (Year) | Follow-up * (Month) | PSM Overall † | PSM Base † | Catheter Removal * (Day) | Leakage † | Retention † | BNC † | Continence Outcome 1. Definition 2. Timing of Measurement |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Freire, et al. [32] †† 1. 2009 2. USA 3. Prospective |
BNP | 348 | 57.1 ± 6.6 | 12.7 ± 9.7 | 42 (12.1) | 5 (1.4) | 7.7 ± 2.44 | 10 (2.8) | 14 (4) | 4 (1.1) | 1. 0 PPD 2. 4, 12, and 24 months |
| Control | 271 | 58.9 ± 6.7 | 26.7 ± 8.0 | 37 (13.7) | 6 (2.2) | 8.0 ± 3.97 | 4 (1.5) | 6 (2.2) | 2 (0.7) | ||
| Friedlander, et al. [33] †† 1. 2012 2. USA 3. Prospective |
BNP | 791 | 58.9 ± 6.6 | 25.8 | 109 (13.8) | 9 (1.1) | 7.9 ± 3.5 | 11 (1.4) | NA | NA | 1. 0 PPD 2. 12, and 24 months |
| Control | 276 | 58.8 ± 6.8 | 51.7 | 38 (13.8) | 7 (2.5) | 8.0 ± 3.5 | 11 (4.0) | NA | NA | ||
| Lee, et al. [34] 1. 2014 2. USA 3. Retrospective |
BNP | 496 | 59.3 ± 6.7 | NA | 87 (17.5) | 6 (1.2) | NA | NA | NA | NA | 1. 0 PPD or 0–1 PPD 2. 3 and 12 months |
| Control | 103 | 60.0 ± 6.5 | NA | 18 (17.4) | 2 (1.9) | NA | NA | NA | NA | ||
| Rajih, et al. [35] 1. 2018 2. Canada 3. Retrospective |
BNP | 245 | 60.6 | 49 ± 25 | NA | NA | NA | NA | NA | NA | 1. 0 PPD 2. 1, 3, 6, 12, and 24 months |
| Control | 77 | 61.6 | NA | NA | NA | NA | NA | NA |
BNC, bladder neck contracture; BNP, bladder neck preservation; NA, not available; PPD, pad per day; PSM, positive surgical margin. *: Data are presented as mean ± standard deviation. †: Data are presented as n (%). ††: The data from Freire et al.’s study was a part of Friedlander et al.’s study, therefore only one of the two studies were adopted for meta-analysis depending on the purpose.