Table 1 Preoperative data

Age (years)

72 ± 6

72 ± 6

0.9

ASA score

2.3 ± 0.6

2.3 ± 0.5

0.8

BMI

27.4 ± 4

27.1 ± 3

1.0

Preoperative urinary retention

15

6

< 0.05

Preoperative estimated prostate volume (mL)

153 ± 59

130 ± 56

0.2

Preoperative IPSS

21.1 ± 6.8

29.3 ± 6.5

< 0.05

Maximum flow rate (mL/s)

8.6 ± 5.4

8.2 ± 2.8

0.8

Preoperative PSA (µg/L)

10.6 ± 7.9

5.5 ± 4.2

< 0.01