Effective Concentration of Lidocaine Plus Fentanyl for Caudal Block in Patients Undergoing Transrectal Ultrasound Guided Prostate Biopsy

Table 1

The demographic and the procedural data.

Age (yr)	65.3 ± 9.3
Weight (kg)	60.3 ± 8.5
ASA I/II ()	15/8
The procedure duration (min)	6.8 ± 2.4
Body mass index (kg/m^2)	24.3 ± 2.4

Data are presented as mean ± standard deviation or number of patients. ASA: American Society of Anesthesiologists.