Table 4.

Prevalence of sleep disorders by number of chronic medical conditions (CMCs).

Sleep Disorder, n (%)	One CMC	Multiple CMCs	P
	n = 3,864 (23%)	n = 12,745 (77%)
Sleep-disordered breathing	200 (5.2%)	1652 (13.0%)	<.001
Insomnia	3 (0.1%)	166 (1.3%)	<.001
Nocturnal enuresis	2 (0.1%)	203 (1.6%)	<.001
Parasomnia	0 (0%)	48 (0.4%)	<.001
Sleep-related movement disorder	0 (0%)	49 (0.4%)	<.001
Circadian rhythm sleep disorders	0 (0%)	26 (0.2%)	.010
Hypersomnia	0 (0%)	20 (0.2%)	.028
Narcolepsy with cataplexy	0 (0%)	2 (0.0%)	1.000
Other sleep disorders	14 (0.4%)	333 (2.6%)	<.001