Table 3.
Six-month success rates and subgroup analysis. Each cell shows number of successes / number treated, success rate and 95% posterior credible intervals in parentheses.
| Subgroup | Level | SIJ Fusion | NSM | Rate Difference* |
|---|---|---|---|---|
| Diagnosis | Degenerative sacroiliitis | 71/88, 80.7% (70.9-88.3%) |
11/40, 27.5% (14.6-43.9%) |
52.3% (35.6-67.2%) |
| Sacroiliac joint disruption | 13/14, 92.9% (66.1-99.8%) |
1/6, 16.7% (0.4-64.1%) |
68.5% (31.0-93.1%) |
|
| History of lumbar fusion | Yes | 35/41, 85.4% (70.8-94.4%) |
3/17, 17.6% (3.8-43.4%) |
65.1% (41.8-83.0%) |
| No | 49/61, 80.3% (68.2-89.4%) |
9/29, 31.0% (15.3-50.8%) |
48.2% (28.0-66.1%) |
|
| Smoking | Current | 20/26, 76.9% (56.4-91.0%) |
1/3, 33.3% (0.8-90.6%) |
38.5% (0-76.7%) |
| Never | 39/46, 84.8% (71.1-93.7%) |
7/30, 23.3% (9.9-42.3%) |
59.8% (40.4-76.4%) |
|
| Former | 25/30, 83.3% (65.3-94.4%) |
4/13, 30.8% (9.1-61.4%) |
50.1% (21.2-74.7%) |
|
| Bilateral pain | Yes | 28/36, 77.8% (60.8-89.9%) |
2/12, 16.7% (2.1-48.4%) |
57.8% (30.1-78.8%) |
| No | 56/66, 84.8% (73.9-92.5%) |
10/34, 29.4% (15.1-47.5%) |
54.3% (36.1-70.5%) |
|
| All | 84/102, 82.4% (73.6-89.2%) |
12/46, 26.1% (14.3-41.1%) |
55.4% (40.1-69.1%) |
*
Point estimate (95% posterior credible interval).