Table 2. Correlation of urinary ATP with age and urodynamic parameters in BPH patients.
| Parameters | Mean | Std. Error | Coefficient | P value |
|---|---|---|---|---|
| Age | 68.927 | 0.630 | 0.0983 | 0.309 |
| Free uroflowmetry | ||||
| Qmax (mL/s) | 8.134 | 0.466 | −0.177 | 0.123 |
| VV (mL) | 180.128 | 12.101 | −0.276 | 0.006 |
| PVR (mL) | 22.071 | 9.466 | −0.00511 | 0.960 |
| Pressure-flow | ||||
| Pdet@Qmax | 75.264 | 2.787 | 0.379 | <0.001 |
| MaxPdet | 80.949 | 3.116 | 0.301 | 0.002 |
| BOOI | 64.059 | 2.510 | 0.566 | <0.001 |
| Degree of obstruction (Schaefer nomogram) | 3.218 | 0.143 | 0.380 | <0.001 |
Analysis was based on 93 BPH patients with BOOI >20. BPH, benign prostatic hyperplasia; Qmax, maximum urinary flow rate; VV, voided volume; PVR, postvoid residual volume; Pdet@Qmax, Pdet at Qmax; MaxPdet, maximum Pdet; BOOI, bladder obstruction index (BOOI = Pdet@Qmax − 2Qmax).