| Level of injection | Group A | Group B | Test | P-value | |
| L3-4 | 17 (68%) | 20 (80%) | X2 = 0.93 | ||
| Level of injection Time to reach T6 | L4-5 | 8 (32%) | 5 (20%) | X2 = 0.93 <0.001** | 0.33 |
| 3.84 ± 0.746 | 5 ± 0.816 | t = 5.24 | |||
| Peak sensory level | T6 | 0 (0%) | 2 (8%) | X2 = 9.5 | |
| Peak sensory level Maximum Bromage scale | T5 | 7 (28%) | 14 (56%) | X2 = 9.5 X2 = 3.9 | 0.04* |
| T4 | 10 (40%) | 7 (28%) | |||
| T3 | 4 (16%) | 2 (8%) | |||
| | 4 (16%) | 0 (0%) | |||
| 3 | 22 (88%) | 16 (64%) | |||
| Maximum Bromage scale Time to max. Bromage scale | 2 | 3 (12%) | 9 (36%) | X2 = 3.9 0.001** | 0.04* |
| 3.6 ± 0.577 | 4.16 ± 0.553 | t = 3.5 | |||
| Time to regression blow L1. | 130.2 ± 8.71 | 116.68 ± 8.6 | t = 5.52 | <0.001** | |
| Duration of motor block | 135.2 ± 11.13 | 123.8 ± 8.32 | t = 4.1 | <0.001** | |
| PACU stay time | 137.4 ± 10.9 | 127.8 ± 6.93 | t = 3.7 | <0.001** | |
| Total fluid volume | 2188 ± 435 | 1844 ± 345.3 | t = 3.09 | 0.003** | |
| Estimated blood loss | 690 ± 79.057 | 726 ± 73.76 | t = 1.6 | 0.1 | |
| Urine output | 137.6 ± 65.53 | 138.8 ± 47.9 | t = 0.07 | 0.9 | |
| Duration of surgery | 49.48 ± 10.51 | 48.4 ± 7.32 | t = 0.42 | 0.67 | |
| Dose of ephedrine | 19.6 ± 12 | 10 ± 6.123 | t = 3.5 | 0.0008** | |
| Dose of phenylephrine | 50 ± 35.64 | 35 ± 20.82 | t = 1.8 | 0.07 | |