Table 1. Sample characteristics.

Characteristics	Narcolepsy (n = 122)	Control (n = 93)	P value
Age (range = 18–35)	27.1 ± 5	25.7 ± 4	0.02
Female (%)	77.9	63.4	0.02
Race/ethnicity (%)			0.02
American Indian/Alaskan	1.6	1.1
Asian	0.8	10.8
Black	3.3	3.2
Hispanic/Latino	2.5	4.3
White/Non-Hispanic	87.7	79.6
Other	4.1	1.1
Educational status (%)			0.002
Some high school, high school or vocational	24.6	17.2
Some College, College, and greater than college	75.4	82.8
Student (%)	30.3	46.2	0.02
Marital status (%)			0.89
Married or Committed relationship	45.9	48.4
Single	49.2	47.3
Divorced/separated	4.9	4.3
Employment (%)
Employed	82.8	95.7	0.003
On sick leave	1.6	0.0
Laid off	0.8	0.0
On disability	9.8	0.0
Homemaker	9.8	3.2
Employment status of those working (%)			>0.05
Works ≤ 20 hours per week	9.0	11.8
Works 21–35 hours per week	11.5	12.9
Works ≥ 36 hours per week	41.8	41.9
Previously discharged from a job (%)	33.0	14.1	0.02

Analyses are reported as mean (+/- SD) for continuous variables and percentages for

categorical variables.