Lower Dose of 5 mL of 1% Lidocaine is More Suitable than the Conventional 10 mL for Caudal Block in Transrectal Prostate Biopsy: A Retrospective Cohort Study

Table 1

Patient characteristics.

	N = 869; Median (range) or N
Age (years)	74 (46–95)
Height (cm)	165.7 (135.7–187.4)
Weight (kg)	64.1 (33.7–109.0)
BMI (kg/m^2)	23.5 (13.3–37.6)
PSA (ng/mL)	8.32 (0.47–8600)
Prostate volume (mL)	38.0 (4.67–398)
The dosage of 1% lidocaine 5 mL 10 mL	466 403

BMI, body mass index; PSA, prostate-specific antigen.