. Author manuscript; available in PMC: 2013 Jan 28.

Published in final edited form as: Eur J Med Genet. 2012 Feb 1;55(5):367–373. doi: 10.1016/j.ejmg.2012.01.006

Table 2.

Comparison of current clinical PKS cases with questionnaire-based series.

	All patients				Patients with epilepsy
	Age (yrs) (mean/median)	% with Sz	Sz types (order of frequency)	% other paroxysm events	% > 1 AED	% > 1 Sz type	% neo Sz	% Sz >15 min	% remission
Current Clinical Cases	15.4/13	60	GTC, GT, M > others	80	100	100	0	0	33
Questionnaire-Based Series	8.3/5.8	53 c 63 s	M ~ GTC, GC > others	35^a	56	48	2	22^b	30

Abbreviations: yrs, years; Sz, seizure; paroxysm, paroxysmal; AED, antiepileptic drugs; neo, neonatal; min, minute; GTC, generalized tonic-clonic seizure; GT, generalized tonic; M, myoclonic; GC, generalized clonic; c, confirmed; s, suspected.

Probably an underestimate due to nature of questionnaire.

Probably an overestimate due to failure to distinguish between clusters of seizures and continuous seizure activity.