Table 1.

Demographic and Clinical Data

	N+ Cataplexy	N+ Cataplexy	N− Cataplexy	Idiopathlc CNS	Controls
	Low hcrt	Normal hcrt		Hypersomnia
	n = 31	n = 16	n = 7	n = 10	n = 50
Female/male	20/11	12/4	3/4	8/2	27/23
Median age	59 (16–76)	46 (23–72)	35 (13–57)	39 (29–60)	40 (16–80)
Age at symptom onset	15 (4–50)	16 (5–50)	23 (4–55)	20 (4–20)
Duration of disorder	26 (1–60)	22.5 (9–50)	10 (2–30)	15 (5–25)
Hypnagogic hallucinations	20 (71%)*	15 (94%)	5 (71%)	7 (70%)
Sleep paralysis	19 (68%)*	15 (94%)	3 (42%)	3 (30%)
Patients with relatives with sleep disorder	11 (36%)* (18 relatives)	7 (43%) (14 relatives)	1 (14%) (1 relative)	2 (20%) (3 relatives)

Table 1 shows the number and median age of patients in each group, and median age at symptom debut and median duration of the disorder in each patient group. It also shows the number and percentage of patients in each group who reported hypnagogic hallucinations, sleep paralysis and relatives with similar sleep disorder. (*Number of patients reduced to 28 due to incomplete answers to the questionnaire). The total number of reported relatives in each group is given in brackets. N = Narcolepsy, hcrt = hypocretin-1