Seizure free rate according to clinical characteristics
| Characteristic | Seizure free rate | Statistic | 95%CI | p Value |
|---|---|---|---|---|
| Patient’s characteristics | ||||
| Age (y): | ||||
| ⩽34 | 0.789 (15/19) | 0.177 | (−0.241 to 0.289) | NS |
| >34 | 0.813 (13/16) | |||
| Sex: | ||||
| Male | 0.864 (19/22) | 1.229 | (−0.116 to 0.460) | NS |
| Female | 0.692 ( 9/13) | |||
| Characteristics of seizure | ||||
| Number of pretreatment seizures: | ||||
| ⩽5 | 0.920 (23/25) | 2.806 | (0.093 to 0.747) | <0.01 |
| >5 | 0.500 (5/10) | |||
| Duration of seizure history (months): | ||||
| ⩽6 | 0.944 (17/18) | 2.200 | (0.046 to 0.548) | <0.05 |
| >6 | 0.647 (11/17) | |||
| Age at seizure onset (y): | ||||
| ⩽32 | 0.789 (15/19) | 0.177 | (−0.241 to 0.289) | NS |
| >32 | 0.813 (13/16) | |||
| Seizure type: | ||||
| Partial seizure without generalisation | 0.571 (4/7) | 1.692 | (−0.102 to 0.674) | NS |
| Secondary generalised seizure | 0.857 (24/28) | |||
| Characteristics of AVM | ||||
| Side: | ||||
| Right | 0.846 (11/13) | 0.521 | (−0.190 to 0.336) | NS |
| Left | 0.773 (17/22) | |||
| Location: | ||||
| Temporal | 0.923 (12/13) | 1.400 | (−0.039 to 0.431) | NS |
| Extratemporal | 0.727 (16/22) | |||
| Cortical | 0.857 (18/21) | 1.362 | (−0.137 to 0.423) | NS |
| Subcortical | 0.714 (10/14) | |||
| Drainage: | ||||
| Superficial | 0.875 (7/8) | 0.602 | (−0.711 to 0.905) | NS |
| Deep | 0.778 (21/27) | |||
| Nidus diameter (mm): | ||||
| ⩽18.1 | 0.778 (14/18) | 0.341 | (−0.219 to 0.311) | NS |
| >18.1 | 0.824 (14/17) | |||
| Nidus volume (cm3): | ||||
| ⩽3.1 | 0.778 (14/18) | 0.341 | (−0.219 to 0.311) | NS |
| >3.1 | 0.824 (14/17) | |||
| Treatment parameter | ||||
| Central dose delivered (Gy): | ||||
| ⩽40 | 0.880 (22/25) | 0.839 | (−0.195, 0.455) | NS |
| >40 | 0.750 (6/8) | |||
| Marginal dose delivered (Gy): | ||||
| ⩽20 | 0.769 (20/26) | 0.774 | (−0.141, 0.381) | NS |
| >20 | 0.889 (8/9) | |||
| Follow up findings | ||||
| Angiographical cure: | ||||
| yes | 0.905 (19/21) | 1.899 | (−0.018, 0.542) | NS |
| no | 0.643 (9/14) | |||
| Radiation-induced edema: | ||||
| yes | 0.750 (9/12) | 0.535 | (−0.214, 0.366) | NS |
| no | 0.826 (19/23) | |||
| AED treatment at last follow up: | ||||
| yes | 0.750 (18/24) | 1.089 | (−0.084, 0.402) | NS |
| no | 0.909 (10/11) | |||
| Length of follow-up (months): | ||||
| ⩽36.0 | 0.778 (14/18) | 0.341 | (−0.219, 0.311) | NS |
| >36.0 | 0.824 (14/17) | |||