Groups  1  2  3  4
Highest sensory segment 7.27 ± 1.03 6.27 ± 1.28 6.23 ± 1.50 6.07 ± 1.39
Sensory block L1 147.33 ± 24.04 173.13 ± 15.5 191.33 ± 19.95 192.13 ± 19.7
Rescue analgesia 152.67 ± 16.68 183.20 ± 19.5 200.67 ± 15.80 201.33 ± 18.46
Table 3: Time taken to reach onset and regression of block