Table 3.
Comparison of Numeric Rating Scale for pain and Oswestry Disability Index score summaries at six time points.
| Time Points | Numeric Pain Rating Score Mean ± SD |
Oswestry Disability Index Mean ± SD |
|---|---|---|
| Baseline | 8.0 ± 0.83 | 31.1 ± 4.10 |
| 3 months | 3.6# ± 1.10 (84%) |
15.3# ± 4.90 (80%) |
| 6 months | 3.8# ± 1.15 (79%) |
15.6# ± 4.62 (71%) |
| 12 months | 4.0# ± 1.27 (69%) |
15.9# ± 5.00 (66%) |
| 18 months | 3.9# ± 1.35 (73%) |
15.5# ± 5.12 (73%) |
| 24 months | 4.2# ± 1.90 (71%) |
15.3# ± 5.36 (73%) |
| Baseline vs follow-up points | 0.001 | 0.001 |
Percentages in parenthesis illustrates proportion with significant pain relief (≥ 50%) from baseline
* indicates significant difference with baseline values (P < 0.05)