| Level of injection | Group C | Group D | Test | P-value | ||
| L3-4 | 19 (76%) | 20 (80%) | X2 = 0.11 | |||
| Level of injection Time to reach T6 | L4-5 | 6 (24%) | 5 (20%) | X2 = 0.11 0.035* | 0.73 | |
| 3.28 ± 0.791 | 3.76 ± 0.778 | t = 2.16 | ||||
| Peak sensory level | T6 | 0 | 1 (4%) | X2 = 16.8 | ||
| Peak sensory level Maximum Bromage scale | T5 | 1 (4%) | 12 (48%) | X2 = 16.8 X2 = 4.5 | 0.0001** | |
| T4 | 11 (44%) | 9 (36%) | ||||
| T3 | 7 (28%) | 2 (8%) | ||||
| | 6 (24%) | 1 (4%) | ||||
| 3 | 23 (92%) | 17 (68%) | ||||
| Maximum Bromage scale Time to max. Bromage scale | 2 | 2 (8%) | 8 (32%) | X2 = 4.5 0.11 | 0.03* | |
| 3.12 ± 0.725 | 3.4 ± 0.5 | t = 1.5 | ||||