Table 3.
Group 1: control, Group 2: sufentanil 2.5 µg, Group 3: sufentanil 5 µg. Values of sensory blocks are means ± SDs. *P < 0.05 Group 3 vs Group 1 (ANOVA and Tukey multiple comparison test). Values of motor blocks are number of patients. P > 0.05 Group 2, 3 vs Group 1 (Linear by linear association), B/S: modified Bromage Scale. 0: No motor block, 1: Unable to raise extended leg (able to flex the knee), 2: Unable to flex knee (able to move the foot only), 3: Unable to flex ankle (unable to move the foot or knee).