Patients’ characteristics
| Embolization group (89 patients; 104 CSDH) | Control group (174 patients; 210 CSDH) | P-value | |
| Demographics (patients) | |||
| Mean age (years) | 74±13 | 77±12 | 0.07 |
| Male sex (%) | 68 (76) | 123 (71) | 0.38 |
| Inclusion criteria (patients) | |||
| Anticoagulant medication (%) | 27 (30) | 54 (31) | 1 |
| Antiplatelet medication (%) | 44 (49) | 96 (55) | 0.43 |
| Thrombocytopenia and coagulation disorders (%) | 2 (2) | 6 (3) | 0.72 |
| Alcohol abuse (%) | 12 (13) | 19 (11) | 0.55 |
| Hepatopathy (%) | 0 (0) | 2 (1) | 0.55 |
| Eligible following recurrence (%) | 22 (25) | 20 (11) | 0.01 |
| Surgical technique (CSDHs) | |||
| Burr-hole craniostomy (%) | 104 (100) | 210 (100) | |
| Closed-system drainage (%) | 97 (93) | 159 (76) | <0.001 |
| Complications (patients) | |||
| Epilepsy (%) | 2 (2) | 9 (5) | 0.34 |
| Empyema (%) | 3 (3) | 5 (3) | 1 |
Values are mean±SD for quantitative variables, or number with (percentage) for qualitative variables.
CSDH, chronic subdural hematoma.