Pain severity-predicted mean on repeated measures.
| Variable | Pain on Visual Analog Scale 0–10, Mean ± SD | |||||||
| Before procedure | 3 d after procedure | 1 mo after procedure | 3 mo after procedure | 6 mo after procedure | 9 mo after procedure | 1 y after procedure | P | |
| LBP score (N = 160) | 7.63 ± 0.94 | 5.64 ± 1.08 | 4.26 ± 1.21 | 3.51 ± 1.32 | 2.99 ± 1.25 | 2.63 ± 1.15 | 2.45 ± 1.09 | <0.001 |
| Leg pain score (N = 536) | 7.67 ± 0.92 | 5.68 ± 1.05 | 4.29 ± 1.19 | 3.55 ± 1.31 | 3.03 ± 1.25 | 2.67 ± 1.12 | 2.49 ± 1.07 | <0.001 |
Abbreviation: LBP, low back pain.