Table 4.
Results of the multiple logistic regression analysis to identify predictors of a “good” global outcome 12 months after surgery (good = 1, poor = 0)
| Independent variables | Unstandardized regression coefficients | Signif. | Odds ratio | 95% CI for odds ratio | ||
|---|---|---|---|---|---|---|
| B | SE | p value | (Exp (B)) | Lower | Upper | |
| Gender (0F,1 M) | 0.398 | 0.454 | 0.380 | 1.489 | 0.612 | 3.623 |
| Age | −0.007 | 0.024 | 0.762 | 0.993 | 0.948 | 1.040 |
| Comorbidity (ASA Score) | −0.199 | 0.334 | 0.552 | 0.819 | 0.426 | 1.578 |
| No. affected levels | 0.008 | 0.390 | 0.983 | 1.008 | 0.469 | 2.167 |
| Main problem LP (vs. LBP) | −0.556 | 0.465 | 0.231 | 0.573 | 0.231 | 1.426 |
| Main problem neurol deficit (vs. LBP) | −0.138 | 0.593 | 0.816 | 0.871 | 0.272 | 2.787 |
| Surgical treatment (0 = D, 1 = D&F) | 0.947 | 0.430 | 0.028 | 2.578 | 1.110 | 5.988 |
After accounting for potential confounders, the surgical treatment undertaken was the only significant predictor of a good outcome (p = 0.021)