Table 1.

Regression models^a for dimensions and components of the SIP.

Dimensions and components	Cataplexy	HLA DQB1⁎0602
	p-Value	p-Value	R2
Overall dysfunction	<0.001	0.001	0.10
Total physical dysfunction	0.005	0.004	0.15
Body Care and Movement	0.033	0.018	0.11
Mobility	<0.001	<0.001	0.11
Ambulation	0.078	0.109	0.17
Total psychosocial dysfunction	<0.001	0.001	0.11
Emotional Behavior	0.008	0.026	0.07
Social Interaction	0.001	0.007	0.06
Alertness Behavior	<0.001	<0.001	0.14
Communication	0.053	0.012	0.04
Total other dysfunction	<0.001	0.013	0.08
Sleep and Rest	0.001	0.617	0.05
Home Management	<0.001	0.007	0.10
Work	0.015	0.013	0.05
Recreation and Pastimes	0.002	0.060	0.06
Eating	0.086	0.160	0.03

^aAdjusted for cataplexy, HLA DQB1⁎0602, age and sex.