Table 3. Oswestry Disability Index percentage scores preoperatively, at 6 weeks and 1 year.
| Cohort | n | Pre-op (%) | 6 weeks post-op (%) |
1-year post-op (%) |
∆6 weeks | ∆1 year | |||
|---|---|---|---|---|---|---|---|---|---|
| (95% CI) (%) | P value | (95% CI) (%) | P value | ||||||
| All | 119 | 45.55 | 25.74 | 29.87 | 19.8 (15.6 –24.0) | <0.0001 | 15.7 (11.2–20.2) | <0.0001 | |
| Male | 54 | 43.25 | 24.8 | 26.37 | 18.5 (13.1 –23.8) | <0.0001 | 16.9 (10.6–23.2) | <0.0001 | |
| Female | 65 | 47.45 | 26.52 | 32.78 | 20.9 (15.7–26.2) | <0.0001 | 14.7 (9.1–20.3) | <0.0001 | |
| Laminectomy | 70 | 47.18 | 24.21 | 28.06 | 23.0 (18.2–27.7) | <0.0001 | 19.1 (13.4–24.9) | <0.0001 | |
| Laminotomy | 49 | 43.22 | 27.91 | 32.47 | 15.3 (10.9–19.8) | <0.0001 | 10.8 (5.8–15.7) | <0.0001 | |
∆, change in score by.