Group | n | pre-operation | 3Â months | 1Â year | 2Â years | 3Â years |
---|---|---|---|---|---|---|
IPSS | ||||||
 TURP group | 320 | 24.03 ± 4.66 | 7.20 ± 2.48 | 6.22 ± 2.31 | 6.65 ± 2.02 | 7.20 ± 2.53 |
 PKEP group | 530 | 24.34 ± 5.11 | 6.95 ± 2.26 | 5.94 ± 2.18 | 6.46 ± 1.98 | 6.99 ± 2.31 |
 t |  | 0.885 | 1.506 | 1.774 | 1.345 | 1.238 |
 P |  | 0.386 | 0.132 | 0.076 | 0.179 | 0.216 |
QoL | ||||||
 TURP group | 320 | 4.60 ± 0.73 | 1.41 ± 0.43 | 1.05 ± 0.33 | 1.33 ± 0.72 | 1.60 ± 0.62 |
 PKEP group | 530 | 4.69 ± 0.82 | 1.37 ± 0.39 | 1.10 ± 0.42 | 1.27 ± 0.48 | 1.54 ± 0.57 |
 t |  | 1.662 | 1.393 | 1.927 | 1.324 | 1.438 |
 P |  | 0.141 | 0.164 | 0.095 | 0.227 | 0.151 |
Qmax (mL/s) | ||||||
 TURP group | 320 | 7.50 ± 1.94 | 25.36 ± 7.24 | 23.75 ± 5.40 | 24.12 ± 6.28 | 22.93 ± 4.48 |
 PKEP group | 530 | 7.66 ± 2.03 | 26.48 ± 6.93 | 25.64 ± 4.58 | 25.33 ± 5.54 | 24.70 ± 4.85 |
 t |  | 1.132 | 2.245 | 5.443 | 2.932 | 5.304 |
 P |  | 0.258 | 0.025 |  < 0.001 | 0.003 |  < 0.001 |
PVR (mL) | ||||||
 TURP group | 320 | 98.85 ± 20.47 | 19.66 ± 5.05 | 20.45 ± 6.68 | 22.27 ± 7.45 | 24.32 ± 8.09 |
 PKEP group | 530 | 101.37 ± 25.18 | 19.00 ± 4.89 | 19.70 ± 7.04 | 21.68 ± 6.84 | 23.78 ± 7.55 |
 t |  | 1.718 | 1.883 | 1.534 | 1.178 | 0.983 |
 P |  | 0.103 | 0.060 | 0.125 | 0.239 | 0.326 |
IIEF-5 | ||||||
 TURP group | 320 | 17.26 ± 4.28 | 16.50 ± 3.94 | 17.26 ± 3.25 | 16.78 ± 4.16 | 15.77 ± 4.75 |
 PKEP group | 530 | 16.81 ± 3.86 | 17.20 ± 4.13 | 18.03±3.47 | 17.61±3.83 | 16.89 ± 4.28 |
 T |  | 1.540 | 2.436 | 3.209 | 2.963 | 3.545 |
 P |  | 0.167 | 0.015 | 0.001 | 0.003 |  < 0.001 |