Demographics of patients undergoing lumbar decompression (n = 91).
| Demographic | Total (n = 91) |
| Age (mean ± SD) | 46.7 ± 13.2 |
| Gender, n (%) | |
| Female | 33 (36.3%) |
| Male | 58 (64.7%) |
| BMI, n (%) | |
| < 30 kg/m2 | 53 (58.2%) |
| ≥ 30 kg/m2 | 38 (41.8%) |
| Smoking status, n (%) | |
| Nonsmoker | 80 (87.9%) |
| Smoker | 11 (12.1%) |
| Diabetes, n (%) | |
| Diabetic | 3 (3.3%) |
| Nondiabetic | 88 (96.7%) |
| ASA score, n (%) | |
| ≤2 | 30 (33.0%) |
| >2 | 61 (67.0%) |
| CCI score, n (%) | |
| <1 | 31 (34.1%) |
| ≥1 | 60 (65.9%) |
| VAS back | |
| <7 | 50 (54.9%) |
| ≥7 | 41 (45.1%) |
| VAS leg, n (%) | |
| <7 | 51 (56.0%) |
| ≥7 | 40 (44.0%) |
| Worker’s compensation, n (%) | |
| No | 83 (91.2%) |
| Yes | 8 (8.8%) |
ASA, American Society of Anesthesiologists; BMI, body mass index; CCI, Charlson Comorbidity Index; VAS, visual analog scale.