Biologic tumour aetiology | #Spine surgeries | Percentage | 95% CI |
Primary epidural neoplasms | 42 | 27.10% | 20.10 - 39.09 |
Secondary epidural neoplasms | 113 | 72.90% | 65.91 - 79.90 |
Total epidural neoplasms | 155 | 100% |
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