Table 2.
Characteristics of patients according to preoperative peak flow rate
| Characteristic | Qmax (mL/sec) |
P-value | |
|---|---|---|---|
| < 15 (n = 21) | ≥ 15 (n = 180) | ||
| Age (yr) | 59.87 (53.83–72.76) | 58.0 (50.48–65.93) | 0.58 |
| Body mass index (kg/m2) | 27.34 (24.57–30.31) | 26.56 (23.88–29.38) | 0.43 |
| Number of childbirth | 2 (1–2) | 2 (1–2) | 0.47 |
| Pad/day | 3 (2–4) | 3 (2–4) | 0.42 |
| Preoperative UDI-6 | 9.47 (7.5–13.0) | 9.47 (9.0–11.0) | 0.43 |
| Preoperative voided volume | 370.0 (318.5–408.52) | - | |
| Menopause | 15 (71.4) | 125 (69.4) | 0.85 |
| Type of childbirth | 0.18 | ||
| Normal | 12 (57.1) | 115 (63.9) | |
| Episiotomy | 1 (4.8) | 19 (10.6) | |
| Dystocic | 5 (23.8) | 16 (8.9) | |
| Laceration | 3 (14.3) | 30 (16.7) | |
| Postoperative PFR | 30.34 (25.50–30.34) | 30.34 (26.62–30.34) | 0.68 |
| Postoperative UDI6 | 1.36 (0–1.68) | 1.36 (0–1.36) | 0.89 |
| Postoperative voided volume | 329.16 (319.20–335.6) | 329.16 (307.50–339.16) | 0.35 |
| Postoperative PFR–preoperative PFR | 17.5 (15.17–22.09) | 4.74 (-4.17 to 9.46) | < 0.01 |
| Postoperative voided volume–preoperative voided volume | -79.35 (-101.02 to -13.83) | -79.35 (-128.14 to 59.62) | 0.36 |
Values are presented as median (interquartile range) or number (%).
Qmax, maximum flow rate; UDI-6, Urogenital Distress Inventory; PFR, peak flow rate.