Table 2. Characteristics of the study patients.

	Participants (n = 20)	Non-participants (n = 40)	p-Value
Age mean/±SD years	38±14.5	51.5±19.7	0.001*
Sex male/female %	25/75	30/70	0.466
Headaches %	25	12.5	0.135
Acute confusional state %	75	75	0.617
Aphasia %	35	40	0.466
Paresis %	15	15	0.296
Oculomotor dysfunction %	5	12.5	0.263
Apraxia %	20	30	0.181
Epileptic seizures %	45	30	0.194
Myoclonus %	25	30	0.224
Intubation %	40	22.5	0.133
Dyalisis %	85	85	0.296
Levetiarcetam %	85	80	0.464
Eculizumab %	75	65	0.466
Cerebral MRI %	80	70	0.308
MRI pathological findings	75	43	0.039*

*- statistically significant.