Table 1 Demographic and clinical characteristics of the study population (N = 946)

Age, years

68.4 (59.7, 74.8)

Sex

 Female

76 (8.0%)

 Male

870 (92.0%)

Body mass index, kg/m²

23.2 (21.2, 25.1)

Charlson comorbidity index score

 ≤ 2

675 (71.4%)

 > 2

271 (28.6%)

American Society of Anesthesiologists physical status

 < 3

559 (59.1%)

 ≥ 3

387 (40.9%)

Minimally invasive surgery

14 (1.5%)

Bilateral repair

 No

880 (93.0%)

 Yes

66 (7.0%)

Spinal anesthesia

239 (25.3%)

Volume of intraoperative fluid

400.0 (200.0, 500.0)

Major complication

1 (0.1%)

Length of hospital stay

3.0 (3.0, 3.0)

Surgery duration (minutes)

69.0 (53.0, 86.0)

Blood loss (ml)

0.0 (0.0, 0.0)

Postoperative urinary retention

23 (2.4%)