Table 3. Demographic data of 16 EPM1 patients.

	n	Mean ± SD	Range
Sex, M/F	10/6
Age, y		31.0±10.9	18−51
Age at EPM1 onset, y		9.6±1.9	5−12
Duration of disease, y		21.4±10.2	8−41
UMRS: Myoclonus with Action		49.1±25.8	12−92
Wheelchair use, no/occasionally/wheelchair bound	9/4/3
Number of AED’s in use, 2/3/4/5	5/5/5/1
Phenytoin use, never/earlier temporarily/unknown	9/6/1
VIQ		82.4±12.4	62−102
PIQ		70.4±13.1	52−94