Table 5.
Univariate Analysis of Risk Factors for Treatment Failure in Patients With Pyogenic Vertebral Osteomyelitis at the Mayo Clinic, Rochester
| Variable | Hazard Ratio | (95% Confidence Intervals) | P Value |
|---|---|---|---|
| Age | 0.99 | 0.98–1.01 | .50 |
| Gender | 1.25 | 0.77–2.02 | .36 |
| Diabetes mellitus | 1.41 | 0.74–2.50 | .27 |
| Immunocompromised | 1.35 | 0.56–2.75 | .47 |
| Systemic malignancy | 0.49 | 0.19–1.05 | .07 |
| Epidural extension alone | 0.91 | 0.56–1.46 | .69 |
| Psoas, paravertebral, and epidural extension | 2.54 | 0.98–5.42 | .05 |
| Staphylococcus aureus | 1.36 | 0.85–2.18 | .19 |
| Days of effective parenteral antimicrobials | 1.00 | 0.99–1.01 | .63 |
| Culture positive vs Culture negative | 0.89 | 0.53–1.61 | .71 |
| History of spinal procedure | 1.40 | 0.84–2.60 | .20 |