| McHugh分类 | 描述 | 人数(%) |
| I | 癫痫频率降低80%~100% | 13 (23.2%) |
| II | 癫痫频率降低50%~79% | 15 (26.8%) |
| III | 癫痫频率降低<50% | 2 (3.6%) |
| IV | 仅用手持磁铁有效 | 20 (35.7%) |
| V | 无任何效果 | 6 (10.7%) |