Table 1. Patient characteristics and descriptive statistics.
| Variables | Infiltrated mast cells | P value | |
|---|---|---|---|
| With | Without | ||
| Patients | 84 | 27 | |
| Age (y) | 68.3±9.07 | 62.5±8.62 | 0.004 |
| BMI(kg/m2) | 25.3±5.46 | 23.8±3.62 | 0.185 |
| IPSS-total | 20.1±8.66 | 14.2±7.94 | 0.002 |
| IPSS-voiding | 9.44±4.31 | 9.58±4.72 | 0.886 |
| IPSS-storage | 10.2±4.29 | 5.52±3.07 | < 0.001 |
| QOL score | 4.11±1.39 | 3.78±1.46 | 0.291 |
| Total PSA (ng/ml) | 6.13±3.72 | 4.95±2.19 | 0.122 |
| TPV (ml) | 64.9±26.1 | 52.3±19.4 | 0.023 |
| TZI (%) | 45.2±13.5 | 39.8±18.4 | 0.102 |
| Qmax (ml/s) | 8.04±5.47 | 7.66±3.05 | 0.732 |
| Voided volume (ml) | 213±149 | 238±143 | 0.446 |
| PVR (ml) | 20.4±7.95 | 19.2±9.67 | 0.519 |
BMI, body mass index; PSA, prostate specific antigen; IPSS, International Prostate Symptom Score; V, voiding subscore; S, storage subscore; QOL, quality of life; TPV, total prostate volume; TZI, transition zone index; Qmax, maximum flow rate; PVR, postvoid residual.