Table 2.
Comparison of Numeric Pain Rating Scale (overall) and Oswestry Disability Index score between groups FJI and PRI over time.
| Time | Numeric Pain Rating Scale | Oswestry Disability Index | ||
|---|---|---|---|---|
| FJI Group (87) | PRI Group (109) | FJI Group (87) | PRI Group (109) | |
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |
| Baseline | 6.9 ± 1.2 | 7.1 ± 1.3 | 44.4 ± 13.2 | 47.3 ± 17.0 |
| After intervention | 1.8 * ± 1.8 | 1.6 * ± 1.7 | - | - |
| 6 weeks † | 4.4 * ± 2.1 | 3.4 * ± 1.9 | 31.7 * ± 14.5 | 25.8 * ± 15.1 |
| 3 months † | 5.6 * ± 1.6 | 3.8 * ± 2.1 | 37.1 * ± 11.9 | 26.6 * ± 14.9 |
| 6 months † | 5.6 * ± 1.7 | 3.7 * ± 2.2 | 35.8 * ± 12.1 | 25.8 * ± 15.0 |
| 12 months † | 6.2 * ± 1.8 | 4.4 * ± 2.5 | 37.8 * ± 13.4 | 25.6 * ± 15.1 |
| ptreatment | <0.001 | <0.001 | ||
| ptime | <0.001 | <0.001 | ||
| ptreatment × time | <0.001 | <0.001 | ||
p-values from 2-sided 2-way ANOVA for repeated measures; * indicates significant improvement in posthoc tests in comparison to baseline values (p < 0.001); † indicates a significant difference in posthoc tests between the means of NRS and ODI of the 2 groups at the specified time (p < 0.01); ODI—Oswestry Disability Index, SD—single standard deviation.