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 2
Comparison of patient characteristics with propensity-score matching.
Prematching
Postmatching
1% lidocaine 5 mL (n = 466)
1% lidocaine 10 mL (n = 403)
value
Standardized difference
1% lidocaine 5 mL (n = 395)
1% lidocaine 10 mL (n = 395)
value
Standardized difference
Age (years), median (IQR)
74 (67–79)
74 (68–79)
0.67
0.024
74 (67–79)
73 (68–79)
0.89
0.012
Height (cm), median (IQR)
165.4 (161.0–169.6)
166.0 (162.0–170.0)
0.44
0.059
165.7 (161.5–169.8)
166.0 (161.9–169.7)
0.92
0.015
Weight (kg), median (IQR)
64.7 (57.5–70.63)
63.9 (57.7–70.0)
0.68
0.029
65.0 (57.7–70.5)
64 (57.8–70.0)
0.74
0.019
BMI (kg/m2), median (IQR)
23.7 (21.6–25.4)
23.3 (21.4–24.9)
0.33
0.062
23.7 (21.5–25.2)
23.3 (21.5–24.9)
0.68
0.027
PSA (ng/mL), median (IQR)
8.48 (5.8–13.2)
8.09 (5.7–15.6)
0.59
0.037
8.56 (5.89–13.0)
8.16 (5.70–15.72)
0.95
0.0042
Prostate volume (mL), median (IQR)
37.4 (27.7–55.0)
38.7 (28.0–53.0)
0.54
0.042
36.9 (27.2–54.6)
38.7 (28.0–53.0)
0.98
0.0012
Age, height, weight, BMI, PSA, and prostate volume were analyzed using the Mann–Whitney U test. BMI, body mass index; PSA, prostate-specific antigen; IQR, interquartile range.
