Responder rate—back pain (VAS/NRS) and ODI across cohorts
| 30% ∆ Pain | 50% ∆ Pain | Remitter* | 15 Point ∆ ODI | ||
| Q1 | 6 months | 67% | 48% | 36% | 64% |
| 12 months | 80% | 68% | 56% | 67% | |
| 24 months | 86% | 71% | 65% | 68% | |
| Q2 | 6 months | 72% | 54% | 43% | 58% |
| 12 months | 48% | 48% | 48% | 68% | |
| 24 months | 83% | 74% | 69% | 74% | |
| Q3 | 6 months | 63% | 54% | 42% | 46% |
| 12 months | 68% | 58% | 55% | 60% | |
| 24 months | 65% | 52% | 48% | 49% | |
| Q4 | 6 months | 63% | 49% | 45% | 46% |
| 12 months | 65% | 57% | 48% | 51% | |
| 24 months | 75% | 62% | 55% | 48% | |
| All completers | 6 months | 66% | 51% | 41% | 54% |
| 12 months | 69% | 60% | 52% | 61% | |
| 24 months | 77% | 65% | 59% | 60% |
*Remitter defined as NRS≤2.5 on VAS or ≤3 on NRS.
ODI, Oswestry Disability Index.