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The L5/S1 Adjacent Segment Disease (ASD) Following Lumbar Spine Surgery in a Resource‑Constrained Centre in Nigeria
Global Journal of Orthopedics
| Vol 2, Issue 1
Table 4. Multivariate Logistic Regression – Predictorsof L5/S1 ASD
| Predictor | Adjusted OR | 95% CI | p‑value |
| Fusion length ≥3 levels | 3.4 | 1.6 – 7.2 | 0.001 |
| Preoperative L5/S1 disc degeneration | 2.8 | 1.3 – 6.1 | 0.008 |
| Age >55 years | 2.4 | 1.1 – 5.2 | 0.03 |
| Male sex | 1.2 | 0.6 – 2.5 | 0.62 |
| Preoperative diagnosis (spondylolisthesis) | 1.4 | 0.7 – 2.9 | 0.38 |