Table 2.
ODI Scores at Baseline, 12-Month Follow-Up, ODI Change, and Number Who Reached 12-Month Post-operative MCID at 3, 6, and 12 months for CWT Benchmark.
| 3 Month Benchmark | 6 Month Benchmark | 12 Month Benchmark | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ≤3 months | >3 months | P-value | ≤6 months | >6 months | P-value | ≤12 months | >12 months | P-value | |
| N | 290 | 1991 | 706 | 1575 | 1351 | 930 | |||
| Baseline ODI (SD) | 51.8 (17.1) | 44.0 (14.7) | <0.001 | 48.6 (15.9) | 43.4 (14.7) | <0.001 | 46.0 (15.7) | 43.6 (14.6) | <0.001 |
| 12-month ODI (SD) | 20.5 (17.7) | 24.3 (19.0) | 0.001 | 22.0 (18.5) | 24.6 (19.0) | 0.002 | 23.3 (18.8) | 24.6 (19.0) | 0.096 |
| ODI change (SD) | −31.0 (21.2) | −19.6 (18.4) | <0.001 | −26.5 (20.9) | −18.6 (17.8) | <0.001 | −22.6 (20.0) | −18.9 (17.7) | <0.001 |
| Reached MCID (%) | 231 (79.6) | 1275 (64.4) | <0.001 | 529 (74.9) | 977 (62.0) | <0.001 | 927 (68.6) | 579 (62.2) | 0.002 |
Bold text indicates statistical significance.