Table 1. Clinical variables between men with and without prostatic calculi.
| Calculi (n = 335) | No calculi (n = 467) | P-value | |
|---|---|---|---|
| Age | |||
| No. (age < 65 years) | 101 | 195 | |
| No. (age ≥ 65 years) | 234 | 272 | |
| Age (years) | 70.5 ± 10.7 | 64.8 ± 12.8 | < 0.001 |
| Prostate volume | |||
| No.(volume < 25 mL) | 168 | 283 | |
| No.(volume ≥ 25 mL) | 167 | 184 | |
| Prostate volume (mL) | 29.7 ± 17.3 | 25.5 ± 16.5 | 0.001 |
| Total IPSS score | 15.7 ± 9.2 | 14.1 ± 9.1 | 0.013 |
| No. with severe symptoms (overall score ≥ 20) (%) | 109 (32.5%) | 134 (28.7%) | < 0.001 |
| Max flow rate | |||
| No.(max flow rate < 10) | 142 | 157 | |
| No.(max flow rate ≥ 10) | 193 | 310 | |
| Max flow rate (mL s−1) | 12.1 ± 6.9 | 14.2 ± 8.2 | 0.003 |
| Prostatitis | |||
| No.(negative) | 311 | 445 | |
| No. (positive) (%) | 24 (7.2%) | 22 (4.7%) | 0.094 |
Abbreviation: IPSS, international prostate symptoms score. The parametric variables are reported as mean ± SE.