Table 3.
Thresholds for selected sizes of the subgroup for the short-term FFbHR outcome as seen in Additional file 1: Appendix 8, figure (a)
| Subgroup size | Age (<) | FFbHR (<) (0 to 100; 100 = best) |
SF-12/36 PCS (<) (0 to 100; 100 = best) |
SF-12/36 MCS (<) (0 to 100; 100 = best) |
Treatment effect |
|---|---|---|---|---|---|
| 0.001 | 37 | 29.17 | 33.62 | 28.93 | 91.29 |
| 0.102 | 91 | 29.17 | 67.75 | 56.82 | 16.79 |
| 0.200 | 54 | 54.17 | 43.62 | 72.11 | 13.74 |
| 0.308 | 62 | 54.17 | 67.75 | 72.11 | 12.72 |
| 0.400 | 62 | 70.83 | 40.45 | 60.35 | 11.32 |
| 0.509 | 67 | 62.50 | 67.75 | 72.11 | 10.36 |
| 0.602 | 91 | 75.00 | 40.45 | 60.35 | 9.96 |
| 0.702 | 91 | 75.00 | 47.59 | 60.35 | 9.14 |
| 0.808 | 91 | 100.00 | 47.59 | 60.35 | 8.59 |
| 0.906 | 91 | 100.00 | 47.59 | 72.11 | 8.47 |
Adapted with permission from: Patel S, Hee SW, Mistry D, Jordan J, Brown S, Dritsaki M, Ellard DR, Friede T, Lamb SE, Lord J, Madan J, Morris T, Stallard N, Tysall C, Willis A, Underwood M, the Repository G. Programme Grants for Applied Research. Identifying back pain subgroups: developing and applying approaches using individual patient data collected within clinical trials. Southampton (UK): NIHR Journals Library