Table 3.
Pre-operative mean differences between the good and poor outcome groups.
| Good outcome | Poor outcome | P – value | |
|---|---|---|---|
| Number of patients | 718 (72.16%) | 277 (27.84%) | |
| Age (range) years | 53.75 (17.5–93) | 53.43 (25–86.2) | 0.76 |
| Gender- male | M 368 (51.2%) | M 139 (50.2%) | |
| Gender- female | F 350 (48.8%) | F 138 (49.8%) | |
| Preoperative COMI score | 7.78 (sd± 1.74) | 8.05 (sd± 1.53) | 0.016 |
| Preoperative LBP VAS | 5.79 (sd± 3.05) | 6.91 (sd ± 2.46) | <0.01 |
| Preoperative LP VAS | 7.49 (sd± 2.38) | 7.82 (sd ± 2.19) | 0.037 |
| Preoperative LP – LBP VAS | 1.7 (sd± 3.12) | 0.91 (sd ± 2.45) | <0.01 |