Change in SI joint pain, Oswestry Disability Index, SF-36, and EQ-5D by group and visit.
| Outcome, mean (SD) | NSM | SIJ Fusion | P-Value* |
|---|---|---|---|
| VAS SIJ pain Baseline Mo 1 Mo 3 Mo 6 Change from baseline Mo 1 Mo 3 Mo 6 |
82.2 (9.9) 69.2 (18.2) 63.5 (26.2) 70.4 (25.9) -13.0 (14.3) -18.7 (23.7) -12.1 (22.7) |
82.3 (11.9) 33.3 (27.3) 25.5 (25.0) 29.8 (29.3) -49.2 (26.4) -56.5 (27.0) -52.6 (29.2) |
<.0001 <.0001 <.0001 |
| Oswestry Disability Index (ODI) Baseline Mo 1 Mo 3 Mo 6 Change in ODI Mo 1 Mo 3 Mo 6 |
61.1 (15.3) 57.1 (17.5) 51.1 (21.5) 56.4 (20.8) -3.7 (11.6) -10.3 (16.4) -4.9 (16.4) |
62.2 (14.5) 44.8 (22.1) 32.3 (21.2) 31.9 (22.7) -17.4 (22.2) -29.5 (21.3) -30.3 (21.9) |
<.0001 <.0001 <.0001 |
| SF-36 PCS Baseline Mo 6 Change from baseline |
30.8 (6.1) 32.0 (7.5) 1.2 (8.0) |
30.2 (6.2) 42.8 (10.0) 12.7 (10.3) |
<.0001 |
| SF-36 MCS Baseline Mo 6 Change from baseline |
43.3 (12.1) 44.0 (12.5) 0.6 (9.7) |
43.0 (11.5) 49.3 (11.5) 6.2 (11.4) |
.0054 |
| EQ-5D Time Trade-Off Index Baseline Mo 6 Change from baseline |
0.47 (0.19) 0.52 (0.22) 0.05 (0.27) |
0.44 (0.18) 0.72 (0.21) 0.29 (0.22) |
<.0001 |
↵* T test for comparison of individual time points.
** Repeated measures analysis of variance (VAS, ODI, SF-36) or t test (EQ-5D).