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The age, sex, operated level, weight and duration of operation for the three groups.
| Mean age (years) | Male | Female | L4–L5 | L5–S1 | Weight (kg) | Duration of operation (mean) | |
|---|---|---|---|---|---|---|---|
| Bupivacaine | 38.16±0.16 | 20 (40%) | 30 (60%) | 28 (56%) | 22 (44%) | 75.1±0.25 | 70.2±0.48 |
| Methylprednisolone | 37.2±0.51 | 23 (46%) | 27 (54%) | 26 (52%) | 24 (48%) | 74.2±0.32 | 74.1±0.23 |
| Normal saline | 38.92 ±0.66 | 24 (48%) | 26 (52%) | 29 (58%) | 21 (42%) | 76.5±0.18 | 73±0.34 |
| P value | 0.144 | 0.704 | 0.704 | 0.828 | 0.828 | 0.437 | 0.418 |
Values are mean±SD
