Table 1.
Characteristics of the two groups at enrolment.
| SP group |
LP group |
p-value | |
|---|---|---|---|
| Mean ± SD | Mean ± SD | ||
| n | 70 | 70 | |
| Age (years) | 68.2 ± 9.2 | 70.4± 6.7 | 0.09 |
| Prostate volume (ml) | 31.5 ± 4.5 | 65.0± 17.8 | <0.001 |
| PSA (ng/ml) | 2.2 ± 2.1 | 6.2 ± 4.6 | <0.001 |
| IPSS-total | 18.3 ± 6.2 | 19.3 ± 6.5 | 0.30 |
| IPSS-storage | 7.9 ± 3.0 | 8.1 ± 2.4 | 0.58 |
| IPSS-voiding | 10.4 ± 4.6 | 11.2 ± 4.6 | 0.25 |
| QOL | 4.8 ± 1.0 | 4.7 ± 0.8 | 0.98 |
| OABSS | 5.6 ± 3.0 | 6.6 ±2.4 | 0.11 |
| FDV (ml) | 118 ± 51 | 129 ± 58 | 0.10 |
| MCC (ml) | 248 ± 97 | 244 ± 87 | 0.82 |
| Qmax (ml/s) | 7.9 ± 4.1 | 6.4 ± 2.5 | 0.009 |
| PVR (ml) | 53 ± 53 | 71 ± 61 | 0.07 |
| PdetQmax (cmH20) | 67.8 ± 17.8 | 88.7 ± 23.7 | <0.001 |
| BOOI | 51.9 ± 20.9 | 75.9 ± 25.2 | <0.001 |
| prevalence of DO | 31/70 (44.3%) | 47/70 (67.1%) | 0.01 |
BOOI, bladder outlet obstruction index; DO, detrusor overactivity; FDV, first desire to void; IPSS, International Prostate Symptom Score; LP, large prostate; MCC, maximum cystometric capacity; OABSS, overactive bladder symptom scores; PdetQmax, detrusor pressure at Qmax; PSA, prostate-specific antigen; PVR, post-void residual urine volume; Qmax, maximum urinary flow rate; QOL, quality of life; SD, standard deviation; SP, small prostate.