Sensitivity analysis of chronic low back pain responder index cutoff points (decreasing the RMDQ cutoff by 5%).
| LBP VAS Cutoff | PGA Cutoff | RMDQ Cutoff | Responders, % |
|---|---|---|---|
| 25 | 25 | 15 | 51.8 |
| 25 | 30 | 15 | 47.7 |
| 25 | 35 | 15 | 21.9 |
| 30 | 25 | 15 | 51.1 |
| 30 | 30 | 15 | 47.3 |
| 30 | 35 | 15 | 21.9 |
| 35 | 25 | 15 | 49.3 |
| 35 | 30 | 15 | 46.3 |
| 35 | 35 | 15 | 21.7 |
RMDQ: Roland-Morris Disability Questionnaire; LBP: low back pain; VAS: visual analog scale; PGA: patient global assessment.