Variable | Median (mean ± SD) | ||
---|---|---|---|
NPi ≥0.33 | NPi < 0.33 | P value | |
Number of patients | 113 | 35 | |
Percentage (%) | 76.50 | 23.50 | |
Age (years) | 69.6 ± 6.0 | 69.1 ± 4.0 | 0.746 |
LUTS duration (years) | 5.8 ± 2.7 | 7.9 ± 4.0 | 0.043 |
24-h drinking volume (ml) | 1931.9 ± 680.6 | 2206.5 ± 429.1 | 0.195 |
4-h before bedtime drinking volume (ml) | 140.8 ± 135.8 | 132.9 ± 102.4 | 0.029 |
Nocturnal urine volume (ml) | 922.4 ± 342.6 | 596.5 ± 168.2 | 0.003 |
Morning urine volume (ml) | 278.3 ± 116.5 | 202.5 ± 55.0 | 0.004 |
Frequency of daytime urination | 7.4 ± 2.2 | 10.6 ± 2.4 | 0.005 |
Bladder capacity index | 0.8 ± 0.6 | 0.8 ± 0.6 | 0.963 |
Maximum urination volume (ml) | 369.1 ± 126.0 | 299.4 ± 75.7 | 0.076 |
Prostate volume (ml) | 41.9 ± 25.3 | 39.5 ± 24.8 | 0.198 |
Peak flow rate (ml/s) | 13.2 ± 10.0 | 13.9 ± 9.9 | 0.12 |
Residual volume (ml) | 21.8 ± 20.0 | 20.6 ± 18.7 | 0.087 |
Serum PSA (ng/ml) | 4.7 ± 4.1 | 4.5 ± 4.0 | 0.102 |