Table 2.
Risk factors associated with explantation, based on univariate analysis
| Variable | Explantation-free (n = 722) | Explantation (n = 281) | P-value |
|---|---|---|---|
| Age (yr) | 70.34 ± 7.46 | 71.16 ± 8.46 | 0.134 |
| Age ≥ 75 yr | 186 (25.8) | 97 (34.6) | 0.007 |
| BMI (kg/m2) | 27.17 ± 3.76 | 27.32 ± 3.99 | 0.701 |
| ASA PS classification grade | 0.019 | ||
| 0 | 4 (1.4) | 4 (1.4) | |
| I | 27 (9.6) | 7 (5.9) | |
| II | 184 (65.5) | 62 (52.5) | |
| III | 61 (21.7) | 46 (39.0) | |
| IV | 4 (1.4) | 2 (1.7) | |
| V | 1 (0.4) | 0 (0) | |
| Charlson score | 3.79 ± 2.26 | 3.68 ± 2.82 | 0.678 |
| Anticoagulants | 50 (8.6) | 35 (15.0) | 0.010 |
| Antiaggregants | 117 (22.5) | 51 (25.0) | 0.544 |
| History of pelvic radiotherapy | 192 (31.3) | 97 (43.5) | 0.001 |
| History of pelvic surgery | 600 (97.6) | 219 (97.3) | 1.000 |
| History of perineal surgery | 178 (32.7) | 77 (38.5) | 0.166 |
| History of incontinence surgery | 114 (15.8) | 39 (13.9) | 0.511 |
| Preoperative pad test (g) | 491.67 ± 459.73 | 665.31 ± 624.41 | 0.015 |
| Preoperative number of pads | 3.71 ± 2.24 | 3.88 ± 2.40 | 0.519 |
| Perineal approach | 446 (62.7) | 159 (59.3) | 0.367 |
| Transcorporal cuff | 45 (6.3) | 22 (8.1) | 0.392 |
| Cuff size (mm) | 43.87 ± 5.91 | 43.67 ± 6.64 | 0.650 |
| No. of procedures at center/yr | 10.19 ± 4.68 | 9.46 ± 5.05 | 0.047 |
| > 10 Procedures/yr | 323 (53.6) | 108 (46.2) | 0.065 |
| Postradical prostatectomy incontinence | 638 (88.4) | 241 (85.8) | 0.285 |
Values are presented as mean±standard deviation or number (%).
BMI, body mass index; ASA PS, American Society of Anesthesiologists physical status classification system.